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Finding the Fourth Proportional to 487,392,957.68, 672,598,304.31 and 264,374,078.28

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Solution

The fourth proportional to 487,392,957.68, 672,598,304.31 and 264,374,078.28 is: 364,834,070.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,392,957.68 : 672,598,304.31 = 264,374,078.28 : x
  2. Step 2: Convert to fraction form
    487,392,957.68/672,598,304.31 = 264,374,078.28/x
  3. Step 3: Cross multiply
    487,392,957.68x = 672,598,304.31 × 264,374,078.28
  4. Step 4: Simplify right side
    487,392,957.68x = 177,817,556,754,647,200
  5. Step 5: Solve for x
    x = 177,817,556,754,647,200/487,392,957.68
  6. Step 6: Final answer
    x = 364,834,070.65

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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.