Home / 726,516,089.40-1,089,774,134.10-721,981,126.20

Finding the Fourth Proportional to 726,516,089.40, 1,089,774,134.10 and 721,981,126.20

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Solution

The fourth proportional to 726,516,089.40, 1,089,774,134.10 and 721,981,126.20 is: 1,082,971,689.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,516,089.40 : 1,089,774,134.10 = 721,981,126.20 : x
  2. Step 2: Convert to fraction form
    726,516,089.40/1,089,774,134.10 = 721,981,126.20/x
  3. Step 3: Cross multiply
    726,516,089.40x = 1,089,774,134.10 × 721,981,126.20
  4. Step 4: Simplify right side
    726,516,089.40x = 786,796,356,641,147,776
  5. Step 5: Solve for x
    x = 786,796,356,641,147,776/726,516,089.40
  6. Step 6: Final answer
    x = 1,082,971,689.30

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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.