Home / 86,654,451.26-129,989,242.53-21,958,258.61

Finding the Fourth Proportional to 86,654,451.26, 129,989,242.53 and 21,958,258.61

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Solution

The fourth proportional to 86,654,451.26, 129,989,242.53 and 21,958,258.61 is: 32,939,305.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,654,451.26 : 129,989,242.53 = 21,958,258.61 : x
  2. Step 2: Convert to fraction form
    86,654,451.26/129,989,242.53 = 21,958,258.61/x
  3. Step 3: Cross multiply
    86,654,451.26x = 129,989,242.53 × 21,958,258.61
  4. Step 4: Simplify right side
    86,654,451.26x = 2,854,337,403,341,804.50
  5. Step 5: Solve for x
    x = 2,854,337,403,341,804.50/86,654,451.26
  6. Step 6: Final answer
    x = 32,939,305.04

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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.