Home / 524,729,085.72-724,144,007.42-310,331,516.21

Finding the Fourth Proportional to 524,729,085.72, 724,144,007.42 and 310,331,516.21

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Solution

The fourth proportional to 524,729,085.72, 724,144,007.42 and 310,331,516.21 is: 428,268,060.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,729,085.72 : 724,144,007.42 = 310,331,516.21 : x
  2. Step 2: Convert to fraction form
    524,729,085.72/724,144,007.42 = 310,331,516.21/x
  3. Step 3: Cross multiply
    524,729,085.72x = 724,144,007.42 × 310,331,516.21
  4. Step 4: Simplify right side
    524,729,085.72x = 224,724,707,773,025,472
  5. Step 5: Solve for x
    x = 224,724,707,773,025,472/524,729,085.72
  6. Step 6: Final answer
    x = 428,268,060.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.