Home / 623,901,165.79-861,010,512.89-345,442,713.92

Finding the Fourth Proportional to 623,901,165.79, 861,010,512.89 and 345,442,713.92

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Solution

The fourth proportional to 623,901,165.79, 861,010,512.89 and 345,442,713.92 is: 476,725,841.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,901,165.79 : 861,010,512.89 = 345,442,713.92 : x
  2. Step 2: Convert to fraction form
    623,901,165.79/861,010,512.89 = 345,442,713.92/x
  3. Step 3: Cross multiply
    623,901,165.79x = 861,010,512.89 × 345,442,713.92
  4. Step 4: Simplify right side
    623,901,165.79x = 297,429,808,288,408,128
  5. Step 5: Solve for x
    x = 297,429,808,288,408,128/623,901,165.79
  6. Step 6: Final answer
    x = 476,725,841.52

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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.