Home / 216,531,421.60-324,797,132.40-70,969,731.70

Finding the Fourth Proportional to 216,531,421.60, 324,797,132.40 and 70,969,731.70

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Solution

The fourth proportional to 216,531,421.60, 324,797,132.40 and 70,969,731.70 is: 106,454,597.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,531,421.60 : 324,797,132.40 = 70,969,731.70 : x
  2. Step 2: Convert to fraction form
    216,531,421.60/324,797,132.40 = 70,969,731.70/x
  3. Step 3: Cross multiply
    216,531,421.60x = 324,797,132.40 × 70,969,731.70
  4. Step 4: Simplify right side
    216,531,421.60x = 23,050,765,343,357,376
  5. Step 5: Solve for x
    x = 23,050,765,343,357,376/216,531,421.60
  6. Step 6: Final answer
    x = 106,454,597.55

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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.