Home / 121,528,297.20-182,376,426.60-87,478,748.40

Finding the Fourth Proportional to 121,528,297.20, 182,376,426.60 and 87,478,748.40

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Solution

The fourth proportional to 121,528,297.20, 182,376,426.60 and 87,478,748.40 is: 131,278,573.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,528,297.20 : 182,376,426.60 = 87,478,748.40 : x
  2. Step 2: Convert to fraction form
    121,528,297.20/182,376,426.60 = 87,478,748.40/x
  3. Step 3: Cross multiply
    121,528,297.20x = 182,376,426.60 × 87,478,748.40
  4. Step 4: Simplify right side
    121,528,297.20x = 15,954,061,536,632,468
  5. Step 5: Solve for x
    x = 15,954,061,536,632,468/121,528,297.20
  6. Step 6: Final answer
    x = 131,278,573.83

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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.