Home / 78,996,872.20-118,495,308.30-40,733,120.20

Finding the Fourth Proportional to 78,996,872.20, 118,495,308.30 and 40,733,120.20

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Solution

The fourth proportional to 78,996,872.20, 118,495,308.30 and 40,733,120.20 is: 61,099,680.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,996,872.20 : 118,495,308.30 = 40,733,120.20 : x
  2. Step 2: Convert to fraction form
    78,996,872.20/118,495,308.30 = 40,733,120.20/x
  3. Step 3: Cross multiply
    78,996,872.20x = 118,495,308.30 × 40,733,120.20
  4. Step 4: Simplify right side
    78,996,872.20x = 4,826,683,636,119,958
  5. Step 5: Solve for x
    x = 4,826,683,636,119,958/78,996,872.20
  6. Step 6: Final answer
    x = 61,099,680.30

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Similar ratio
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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.