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Finding the Fourth Proportional to 472,392,425.55, 708,588,638.33 and 424,775,311.95

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Solution

The fourth proportional to 472,392,425.55, 708,588,638.33 and 424,775,311.95 is: 637,162,967.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,425.55 : 708,588,638.33 = 424,775,311.95 : x
  2. Step 2: Convert to fraction form
    472,392,425.55/708,588,638.33 = 424,775,311.95/x
  3. Step 3: Cross multiply
    472,392,425.55x = 708,588,638.33 × 424,775,311.95
  4. Step 4: Simplify right side
    472,392,425.55x = 300,990,959,888,727,616
  5. Step 5: Solve for x
    x = 300,990,959,888,727,616/472,392,425.55
  6. Step 6: Final answer
    x = 637,162,967.93

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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.