Home / 266,754,142.11-398,510,006.63-172,614,195.55

Finding the Fourth Proportional to 266,754,142.11, 398,510,006.63 and 172,614,195.55

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Solution

The fourth proportional to 266,754,142.11, 398,510,006.63 and 172,614,195.55 is: 257,872,225.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,754,142.11 : 398,510,006.63 = 172,614,195.55 : x
  2. Step 2: Convert to fraction form
    266,754,142.11/398,510,006.63 = 172,614,195.55/x
  3. Step 3: Cross multiply
    266,754,142.11x = 398,510,006.63 × 172,614,195.55
  4. Step 4: Simplify right side
    266,754,142.11x = 68,788,484,212,697,688
  5. Step 5: Solve for x
    x = 68,788,484,212,697,688/266,754,142.11
  6. Step 6: Final answer
    x = 257,872,225.22

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.