Home / 78,636,422.04-108,518,766.12-43,831,319.64

Finding the Fourth Proportional to 78,636,422.04, 108,518,766.12 and 43,831,319.64

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Solution

The fourth proportional to 78,636,422.04, 108,518,766.12 and 43,831,319.64 is: 60,487,501.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,636,422.04 : 108,518,766.12 = 43,831,319.64 : x
  2. Step 2: Convert to fraction form
    78,636,422.04/108,518,766.12 = 43,831,319.64/x
  3. Step 3: Cross multiply
    78,636,422.04x = 108,518,766.12 × 43,831,319.64
  4. Step 4: Simplify right side
    78,636,422.04x = 4,756,520,724,744,123
  5. Step 5: Solve for x
    x = 4,756,520,724,744,123/78,636,422.04
  6. Step 6: Final answer
    x = 60,487,501.86

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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.