Home / 28,163,215.60-42,188,836.20-15,360,809.20

Finding the Fourth Proportional to 28,163,215.60, 42,188,836.20 and 15,360,809.20

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Solution

The fourth proportional to 28,163,215.60, 42,188,836.20 and 15,360,809.20 is: 23,010,677.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,163,215.60 : 42,188,836.20 = 15,360,809.20 : x
  2. Step 2: Convert to fraction form
    28,163,215.60/42,188,836.20 = 15,360,809.20/x
  3. Step 3: Cross multiply
    28,163,215.60x = 42,188,836.20 × 15,360,809.20
  4. Step 4: Simplify right side
    28,163,215.60x = 648,054,663,238,253
  5. Step 5: Solve for x
    x = 648,054,663,238,253/28,163,215.60
  6. Step 6: Final answer
    x = 23,010,677.21

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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.