Home / 121,344,341.60-182,016,512.40-80,529,672.80

Finding the Fourth Proportional to 121,344,341.60, 182,016,512.40 and 80,529,672.80

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Solution

The fourth proportional to 121,344,341.60, 182,016,512.40 and 80,529,672.80 is: 120,794,509.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,344,341.60 : 182,016,512.40 = 80,529,672.80 : x
  2. Step 2: Convert to fraction form
    121,344,341.60/182,016,512.40 = 80,529,672.80/x
  3. Step 3: Cross multiply
    121,344,341.60x = 182,016,512.40 × 80,529,672.80
  4. Step 4: Simplify right side
    121,344,341.60x = 14,657,730,187,769,142
  5. Step 5: Solve for x
    x = 14,657,730,187,769,142/121,344,341.60
  6. Step 6: Final answer
    x = 120,794,509.20

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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.