Home / 216,551,815.20-324,827,722.80-130,458,373.20

Finding the Fourth Proportional to 216,551,815.20, 324,827,722.80 and 130,458,373.20

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Solution

The fourth proportional to 216,551,815.20, 324,827,722.80 and 130,458,373.20 is: 195,687,559.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,551,815.20 : 324,827,722.80 = 130,458,373.20 : x
  2. Step 2: Convert to fraction form
    216,551,815.20/324,827,722.80 = 130,458,373.20/x
  3. Step 3: Cross multiply
    216,551,815.20x = 324,827,722.80 × 130,458,373.20
  4. Step 4: Simplify right side
    216,551,815.20x = 42,376,496,286,748,552
  5. Step 5: Solve for x
    x = 42,376,496,286,748,552/216,551,815.20
  6. Step 6: Final answer
    x = 195,687,559.80

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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.