Home / 129,034,531.20-193,547,649.60-42,776,918.40

Finding the Fourth Proportional to 129,034,531.20, 193,547,649.60 and 42,776,918.40

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Solution

The fourth proportional to 129,034,531.20, 193,547,649.60 and 42,776,918.40 is: 64,164,002.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,034,531.20 : 193,547,649.60 = 42,776,918.40 : x
  2. Step 2: Convert to fraction form
    129,034,531.20/193,547,649.60 = 42,776,918.40/x
  3. Step 3: Cross multiply
    129,034,531.20x = 193,547,649.60 × 42,776,918.40
  4. Step 4: Simplify right side
    129,034,531.20x = 8,279,372,013,450,992
  5. Step 5: Solve for x
    x = 8,279,372,013,450,992/129,034,531.20
  6. Step 6: Final answer
    x = 64,164,002.74

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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.