Home / 78,746,380.61-118,125,246.31-30,224,234.40

Finding the Fourth Proportional to 78,746,380.61, 118,125,246.31 and 30,224,234.40

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Solution

The fourth proportional to 78,746,380.61, 118,125,246.31 and 30,224,234.40 is: 45,338,529.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,746,380.61 : 118,125,246.31 = 30,224,234.40 : x
  2. Step 2: Convert to fraction form
    78,746,380.61/118,125,246.31 = 30,224,234.40/x
  3. Step 3: Cross multiply
    78,746,380.61x = 118,125,246.31 × 30,224,234.40
  4. Step 4: Simplify right side
    78,746,380.61x = 3,570,245,132,512,645
  5. Step 5: Solve for x
    x = 3,570,245,132,512,645/78,746,380.61
  6. Step 6: Final answer
    x = 45,338,529.91

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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.