Home / 80,956,009.40-121,392,023.70-29,811,702.20

Finding the Fourth Proportional to 80,956,009.40, 121,392,023.70 and 29,811,702.20

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Solution

The fourth proportional to 80,956,009.40, 121,392,023.70 and 29,811,702.20 is: 44,702,090.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,956,009.40 : 121,392,023.70 = 29,811,702.20 : x
  2. Step 2: Convert to fraction form
    80,956,009.40/121,392,023.70 = 29,811,702.20/x
  3. Step 3: Cross multiply
    80,956,009.40x = 121,392,023.70 × 29,811,702.20
  4. Step 4: Simplify right side
    80,956,009.40x = 3,618,902,859,999,742
  5. Step 5: Solve for x
    x = 3,618,902,859,999,742/80,956,009.40
  6. Step 6: Final answer
    x = 44,702,090.52

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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.