Home / 749,088,001.45-1,123,632,002.18-628,155,649.45

Finding the Fourth Proportional to 749,088,001.45, 1,123,632,002.18 and 628,155,649.45

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Solution

The fourth proportional to 749,088,001.45, 1,123,632,002.18 and 628,155,649.45 is: 942,233,474.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,088,001.45 : 1,123,632,002.18 = 628,155,649.45 : x
  2. Step 2: Convert to fraction form
    749,088,001.45/1,123,632,002.18 = 628,155,649.45/x
  3. Step 3: Cross multiply
    749,088,001.45x = 1,123,632,002.18 × 628,155,649.45
  4. Step 4: Simplify right side
    749,088,001.45x = 705,815,790,069,041,024
  5. Step 5: Solve for x
    x = 705,815,790,069,041,024/749,088,001.45
  6. Step 6: Final answer
    x = 942,233,474.18

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Double scale
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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.