Home / 129,346,680.10-194,020,020.15-64,660,468.90

Finding the Fourth Proportional to 129,346,680.10, 194,020,020.15 and 64,660,468.90

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Solution

The fourth proportional to 129,346,680.10, 194,020,020.15 and 64,660,468.90 is: 96,990,703.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,346,680.10 : 194,020,020.15 = 64,660,468.90 : x
  2. Step 2: Convert to fraction form
    129,346,680.10/194,020,020.15 = 64,660,468.90/x
  3. Step 3: Cross multiply
    129,346,680.10x = 194,020,020.15 × 64,660,468.90
  4. Step 4: Simplify right side
    129,346,680.10x = 12,545,425,478,886,448
  5. Step 5: Solve for x
    x = 12,545,425,478,886,448/129,346,680.10
  6. Step 6: Final answer
    x = 96,990,703.35

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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.