Home / 129,094,705.10-193,380,784.05-80,423,165.90

Finding the Fourth Proportional to 129,094,705.10, 193,380,784.05 and 80,423,165.90

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Solution

The fourth proportional to 129,094,705.10, 193,380,784.05 and 80,423,165.90 is: 120,471,981.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,094,705.10 : 193,380,784.05 = 80,423,165.90 : x
  2. Step 2: Convert to fraction form
    129,094,705.10/193,380,784.05 = 80,423,165.90/x
  3. Step 3: Cross multiply
    129,094,705.10x = 193,380,784.05 × 80,423,165.90
  4. Step 4: Simplify right side
    129,094,705.10x = 15,552,294,877,525,226
  5. Step 5: Solve for x
    x = 15,552,294,877,525,226/129,094,705.10
  6. Step 6: Final answer
    x = 120,471,981.14

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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.