Home / 342,411,147-513,314,386.38-261,991,132.92

Finding the Fourth Proportional to 342,411,147, 513,314,386.38 and 261,991,132.92

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Solution

The fourth proportional to 342,411,147, 513,314,386.38 and 261,991,132.92 is: 392,755,372.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,411,147 : 513,314,386.38 = 261,991,132.92 : x
  2. Step 2: Convert to fraction form
    342,411,147/513,314,386.38 = 261,991,132.92/x
  3. Step 3: Cross multiply
    342,411,147x = 513,314,386.38 × 261,991,132.92
  4. Step 4: Simplify right side
    342,411,147x = 134,483,817,631,830,816
  5. Step 5: Solve for x
    x = 134,483,817,631,830,816/342,411,147
  6. Step 6: Final answer
    x = 392,755,372.63

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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.