Home / 129,034,519.20-193,547,631.60-42,776,906.40

Finding the Fourth Proportional to 129,034,519.20, 193,547,631.60 and 42,776,906.40

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Solution

The fourth proportional to 129,034,519.20, 193,547,631.60 and 42,776,906.40 is: 64,163,984.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,034,519.20 : 193,547,631.60 = 42,776,906.40 : x
  2. Step 2: Convert to fraction form
    129,034,519.20/193,547,631.60 = 42,776,906.40/x
  3. Step 3: Cross multiply
    129,034,519.20x = 193,547,631.60 × 42,776,906.40
  4. Step 4: Simplify right side
    129,034,519.20x = 8,279,368,920,894,882
  5. Step 5: Solve for x
    x = 8,279,368,920,894,882/129,034,519.20
  6. Step 6: Final answer
    x = 64,163,984.74

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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.