Home / 28,088,644.20-42,134,132.70-8,918,860.20

Finding the Fourth Proportional to 28,088,644.20, 42,134,132.70 and 8,918,860.20

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Solution

The fourth proportional to 28,088,644.20, 42,134,132.70 and 8,918,860.20 is: 13,378,660.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,088,644.20 : 42,134,132.70 = 8,918,860.20 : x
  2. Step 2: Convert to fraction form
    28,088,644.20/42,134,132.70 = 8,918,860.20/x
  3. Step 3: Cross multiply
    28,088,644.20x = 42,134,132.70 × 8,918,860.20
  4. Step 4: Simplify right side
    28,088,644.20x = 375,788,439,199,548.56
  5. Step 5: Solve for x
    x = 375,788,439,199,548.56/28,088,644.20
  6. Step 6: Final answer
    x = 13,378,660.66

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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.