Home / 69,108,158,285.38-103,662,237,428.08-19,421,480,571.13

Finding the Fourth Proportional to 69,108,158,285.38, 103,662,237,428.08 and 19,421,480,571.13

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Solution

The fourth proportional to 69,108,158,285.38, 103,662,237,428.08 and 19,421,480,571.13 is: 29,132,220,856.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,108,158,285.38 : 103,662,237,428.08 = 19,421,480,571.13 : x
  2. Step 2: Convert to fraction form
    69,108,158,285.38/103,662,237,428.08 = 19,421,480,571.13/x
  3. Step 3: Cross multiply
    69,108,158,285.38x = 103,662,237,428.08 × 19,421,480,571.13
  4. Step 4: Simplify right side
    69,108,158,285.38x = 2,013,274,130,169,320,964,096
  5. Step 5: Solve for x
    x = 2,013,274,130,169,320,964,096/69,108,158,285.38
  6. Step 6: Final answer
    x = 29,132,220,856.70

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Double scale
Find fourth proportional to 69,108,158,286.38, 103,662,237,429.58 and 19,421,480,572.13
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.