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Finding the Fourth Proportional to 80,888,420.40, 121,332,630.60 and 80,888,420.40

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Solution

The fourth proportional to 80,888,420.40, 121,332,630.60 and 80,888,420.40 is: 121,332,630.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,888,420.40 : 121,332,630.60 = 80,888,420.40 : x
  2. Step 2: Convert to fraction form
    80,888,420.40/121,332,630.60 = 80,888,420.40/x
  3. Step 3: Cross multiply
    80,888,420.40x = 121,332,630.60 × 80,888,420.40
  4. Step 4: Simplify right side
    80,888,420.40x = 9,814,404,832,210,704
  5. Step 5: Solve for x
    x = 9,814,404,832,210,704/80,888,420.40
  6. Step 6: Final answer
    x = 121,332,630.60

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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.