Home / 80,852,815.20-121,279,222.80-29,724,254.40

Finding the Fourth Proportional to 80,852,815.20, 121,279,222.80 and 29,724,254.40

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Solution

The fourth proportional to 80,852,815.20, 121,279,222.80 and 29,724,254.40 is: 44,586,381.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,852,815.20 : 121,279,222.80 = 29,724,254.40 : x
  2. Step 2: Convert to fraction form
    80,852,815.20/121,279,222.80 = 29,724,254.40/x
  3. Step 3: Cross multiply
    80,852,815.20x = 121,279,222.80 × 29,724,254.40
  4. Step 4: Simplify right side
    80,852,815.20x = 3,604,934,471,941,480
  5. Step 5: Solve for x
    x = 3,604,934,471,941,480/80,852,815.20
  6. Step 6: Final answer
    x = 44,586,381.60

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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.