Home / 121,528,299.20-182,376,429.60-87,478,750.40

Finding the Fourth Proportional to 121,528,299.20, 182,376,429.60 and 87,478,750.40

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Solution

The fourth proportional to 121,528,299.20, 182,376,429.60 and 87,478,750.40 is: 131,278,576.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,528,299.20 : 182,376,429.60 = 87,478,750.40 : x
  2. Step 2: Convert to fraction form
    121,528,299.20/182,376,429.60 = 87,478,750.40/x
  3. Step 3: Cross multiply
    121,528,299.20x = 182,376,429.60 × 87,478,750.40
  4. Step 4: Simplify right side
    121,528,299.20x = 15,954,062,163,821,572
  5. Step 5: Solve for x
    x = 15,954,062,163,821,572/121,528,299.20
  6. Step 6: Final answer
    x = 131,278,576.83

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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.