Home / 129,433,404.70-194,150,107.05-109,026,070.30

Finding the Fourth Proportional to 129,433,404.70, 194,150,107.05 and 109,026,070.30

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Solution

The fourth proportional to 129,433,404.70, 194,150,107.05 and 109,026,070.30 is: 163,539,105.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,433,404.70 : 194,150,107.05 = 109,026,070.30 : x
  2. Step 2: Convert to fraction form
    129,433,404.70/194,150,107.05 = 109,026,070.30/x
  3. Step 3: Cross multiply
    129,433,404.70x = 194,150,107.05 × 109,026,070.30
  4. Step 4: Simplify right side
    129,433,404.70x = 21,167,423,219,985,828
  5. Step 5: Solve for x
    x = 21,167,423,219,985,828/129,433,404.70
  6. Step 6: Final answer
    x = 163,539,105.45

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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.