Home / 85,987,423.82-128,853,589.79-63,156,718.46

Finding the Fourth Proportional to 85,987,423.82, 128,853,589.79 and 63,156,718.46

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Solution

The fourth proportional to 85,987,423.82, 128,853,589.79 and 63,156,718.46 is: 94,641,396.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,987,423.82 : 128,853,589.79 = 63,156,718.46 : x
  2. Step 2: Convert to fraction form
    85,987,423.82/128,853,589.79 = 63,156,718.46/x
  3. Step 3: Cross multiply
    85,987,423.82x = 128,853,589.79 × 63,156,718.46
  4. Step 4: Simplify right side
    85,987,423.82x = 8,137,969,893,407,386
  5. Step 5: Solve for x
    x = 8,137,969,893,407,386/85,987,423.82
  6. Step 6: Final answer
    x = 94,641,396.75

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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.