Home / 78,636,273.20-108,518,560.80-43,831,170.62

Finding the Fourth Proportional to 78,636,273.20, 108,518,560.80 and 43,831,170.62

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Solution

The fourth proportional to 78,636,273.20, 108,518,560.80 and 43,831,170.62 is: 60,487,296.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,636,273.20 : 108,518,560.80 = 43,831,170.62 : x
  2. Step 2: Convert to fraction form
    78,636,273.20/108,518,560.80 = 43,831,170.62/x
  3. Step 3: Cross multiply
    78,636,273.20x = 108,518,560.80 × 43,831,170.62
  4. Step 4: Simplify right side
    78,636,273.20x = 4,756,495,553,861,643
  5. Step 5: Solve for x
    x = 4,756,495,553,861,643/78,636,273.20
  6. Step 6: Final answer
    x = 60,487,296.26

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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.