Home / 86,056,418.20-129,122,746.71-45,106,125.43

Finding the Fourth Proportional to 86,056,418.20, 129,122,746.71 and 45,106,125.43

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Solution

The fourth proportional to 86,056,418.20, 129,122,746.71 and 45,106,125.43 is: 67,679,168.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,056,418.20 : 129,122,746.71 = 45,106,125.43 : x
  2. Step 2: Convert to fraction form
    86,056,418.20/129,122,746.71 = 45,106,125.43/x
  3. Step 3: Cross multiply
    86,056,418.20x = 129,122,746.71 × 45,106,125.43
  4. Step 4: Simplify right side
    86,056,418.20x = 5,824,226,808,967,380
  5. Step 5: Solve for x
    x = 5,824,226,808,967,380/86,056,418.20
  6. Step 6: Final answer
    x = 67,679,168.28

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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.