Home / 78,912,000.10-118,368,000.15-57,244,953.70

Finding the Fourth Proportional to 78,912,000.10, 118,368,000.15 and 57,244,953.70

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Solution

The fourth proportional to 78,912,000.10, 118,368,000.15 and 57,244,953.70 is: 85,867,430.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,912,000.10 : 118,368,000.15 = 57,244,953.70 : x
  2. Step 2: Convert to fraction form
    78,912,000.10/118,368,000.15 = 57,244,953.70/x
  3. Step 3: Cross multiply
    78,912,000.10x = 118,368,000.15 × 57,244,953.70
  4. Step 4: Simplify right side
    78,912,000.10x = 6,775,970,688,148,344
  5. Step 5: Solve for x
    x = 6,775,970,688,148,344/78,912,000.10
  6. Step 6: Final answer
    x = 85,867,430.55

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1.5x scale

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.