Home / 28,651,263.30-42,882,416.55-20,148,207.30

Finding the Fourth Proportional to 28,651,263.30, 42,882,416.55 and 20,148,207.30

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Solution

The fourth proportional to 28,651,263.30, 42,882,416.55 and 20,148,207.30 is: 30,155,871.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,651,263.30 : 42,882,416.55 = 20,148,207.30 : x
  2. Step 2: Convert to fraction form
    28,651,263.30/42,882,416.55 = 20,148,207.30/x
  3. Step 3: Cross multiply
    28,651,263.30x = 42,882,416.55 × 20,148,207.30
  4. Step 4: Simplify right side
    28,651,263.30x = 864,003,818,174,350.75
  5. Step 5: Solve for x
    x = 864,003,818,174,350.75/28,651,263.30
  6. Step 6: Final answer
    x = 30,155,871.63

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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.