Home / 91,563,009.90-137,344,514.85-84,547,988.70

Finding the Fourth Proportional to 91,563,009.90, 137,344,514.85 and 84,547,988.70

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Solution

The fourth proportional to 91,563,009.90, 137,344,514.85 and 84,547,988.70 is: 126,821,983.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,563,009.90 : 137,344,514.85 = 84,547,988.70 : x
  2. Step 2: Convert to fraction form
    91,563,009.90/137,344,514.85 = 84,547,988.70/x
  3. Step 3: Cross multiply
    91,563,009.90x = 137,344,514.85 × 84,547,988.70
  4. Step 4: Simplify right side
    91,563,009.90x = 11,612,202,489,544,782
  5. Step 5: Solve for x
    x = 11,612,202,489,544,782/91,563,009.90
  6. Step 6: Final answer
    x = 126,821,983.05

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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.