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Finding the Fourth Proportional to 621,796,893.60, 932,695,340.40 and 258,104,042.40

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Solution

The fourth proportional to 621,796,893.60, 932,695,340.40 and 258,104,042.40 is: 387,156,063.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,796,893.60 : 932,695,340.40 = 258,104,042.40 : x
  2. Step 2: Convert to fraction form
    621,796,893.60/932,695,340.40 = 258,104,042.40/x
  3. Step 3: Cross multiply
    621,796,893.60x = 932,695,340.40 × 258,104,042.40
  4. Step 4: Simplify right side
    621,796,893.60x = 240,732,437,684,884,032
  5. Step 5: Solve for x
    x = 240,732,437,684,884,032/621,796,893.60
  6. Step 6: Final answer
    x = 387,156,063.60

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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.