Home / 86,536,973.62-129,822,782.55-31,949,892.10

Finding the Fourth Proportional to 86,536,973.62, 129,822,782.55 and 31,949,892.10

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Solution

The fourth proportional to 86,536,973.62, 129,822,782.55 and 31,949,892.10 is: 47,931,233.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,536,973.62 : 129,822,782.55 = 31,949,892.10 : x
  2. Step 2: Convert to fraction form
    86,536,973.62/129,822,782.55 = 31,949,892.10/x
  3. Step 3: Cross multiply
    86,536,973.62x = 129,822,782.55 × 31,949,892.10
  4. Step 4: Simplify right side
    86,536,973.62x = 4,147,823,894,594,263
  5. Step 5: Solve for x
    x = 4,147,823,894,594,263/86,536,973.62
  6. Step 6: Final answer
    x = 47,931,233.57

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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.