Home / 83,240,999.10-124,861,498.65-81,806,108.40

Finding the Fourth Proportional to 83,240,999.10, 124,861,498.65 and 81,806,108.40

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Solution

The fourth proportional to 83,240,999.10, 124,861,498.65 and 81,806,108.40 is: 122,709,162.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,240,999.10 : 124,861,498.65 = 81,806,108.40 : x
  2. Step 2: Convert to fraction form
    83,240,999.10/124,861,498.65 = 81,806,108.40/x
  3. Step 3: Cross multiply
    83,240,999.10x = 124,861,498.65 × 81,806,108.40
  4. Step 4: Simplify right side
    83,240,999.10x = 10,214,433,293,548,354
  5. Step 5: Solve for x
    x = 10,214,433,293,548,354/83,240,999.10
  6. Step 6: Final answer
    x = 122,709,162.60

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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.