Home / 769,565,963.12-1,062,014,636.76-417,153,657.20

Finding the Fourth Proportional to 769,565,963.12, 1,062,014,636.76 and 417,153,657.20

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Solution

The fourth proportional to 769,565,963.12, 1,062,014,636.76 and 417,153,657.20 is: 575,679,423.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,565,963.12 : 1,062,014,636.76 = 417,153,657.20 : x
  2. Step 2: Convert to fraction form
    769,565,963.12/1,062,014,636.76 = 417,153,657.20/x
  3. Step 3: Cross multiply
    769,565,963.12x = 1,062,014,636.76 × 417,153,657.20
  4. Step 4: Simplify right side
    769,565,963.12x = 443,023,289,724,363,520
  5. Step 5: Solve for x
    x = 443,023,289,724,363,520/769,565,963.12
  6. Step 6: Final answer
    x = 575,679,423.15

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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.