Home / 129,346,326.60-194,019,489.90-64,660,115.40

Finding the Fourth Proportional to 129,346,326.60, 194,019,489.90 and 64,660,115.40

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Solution

The fourth proportional to 129,346,326.60, 194,019,489.90 and 64,660,115.40 is: 96,990,173.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,346,326.60 : 194,019,489.90 = 64,660,115.40 : x
  2. Step 2: Convert to fraction form
    129,346,326.60/194,019,489.90 = 64,660,115.40/x
  3. Step 3: Cross multiply
    129,346,326.60x = 194,019,489.90 × 64,660,115.40
  4. Step 4: Simplify right side
    129,346,326.60x = 12,545,322,606,783,134
  5. Step 5: Solve for x
    x = 12,545,322,606,783,134/129,346,326.60
  6. Step 6: Final answer
    x = 96,990,173.10

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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.