Home / 121,381,214.40-182,071,821.60-120,625,387.20

Finding the Fourth Proportional to 121,381,214.40, 182,071,821.60 and 120,625,387.20

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Solution

The fourth proportional to 121,381,214.40, 182,071,821.60 and 120,625,387.20 is: 180,938,080.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,381,214.40 : 182,071,821.60 = 120,625,387.20 : x
  2. Step 2: Convert to fraction form
    121,381,214.40/182,071,821.60 = 120,625,387.20/x
  3. Step 3: Cross multiply
    121,381,214.40x = 182,071,821.60 × 120,625,387.20
  4. Step 4: Simplify right side
    121,381,214.40x = 21,962,483,978,709,324
  5. Step 5: Solve for x
    x = 21,962,483,978,709,324/121,381,214.40
  6. Step 6: Final answer
    x = 180,938,080.80

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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.