Home / 1,018,673,143.80-1,528,009,715.70-291,661,855.80

Finding the Fourth Proportional to 1,018,673,143.80, 1,528,009,715.70 and 291,661,855.80

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Solution

The fourth proportional to 1,018,673,143.80, 1,528,009,715.70 and 291,661,855.80 is: 437,492,783.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,673,143.80 : 1,528,009,715.70 = 291,661,855.80 : x
  2. Step 2: Convert to fraction form
    1,018,673,143.80/1,528,009,715.70 = 291,661,855.80/x
  3. Step 3: Cross multiply
    1,018,673,143.80x = 1,528,009,715.70 × 291,661,855.80
  4. Step 4: Simplify right side
    1,018,673,143.80x = 445,662,149,361,492,416
  5. Step 5: Solve for x
    x = 445,662,149,361,492,416/1,018,673,143.80
  6. Step 6: Final answer
    x = 437,492,783.70

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Double scale
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Similar ratio
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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.