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Finding the Fourth Proportional to 307,959,602.92, 424,841,795.04 and 272,713,327.72

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Solution

The fourth proportional to 307,959,602.92, 424,841,795.04 and 272,713,327.72 is: 376,218,239.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,959,602.92 : 424,841,795.04 = 272,713,327.72 : x
  2. Step 2: Convert to fraction form
    307,959,602.92/424,841,795.04 = 272,713,327.72/x
  3. Step 3: Cross multiply
    307,959,602.92x = 424,841,795.04 × 272,713,327.72
  4. Step 4: Simplify right side
    307,959,602.92x = 115,860,019,679,896,608
  5. Step 5: Solve for x
    x = 115,860,019,679,896,608/307,959,602.92
  6. Step 6: Final answer
    x = 376,218,239.60

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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.