Home / 28,163,235.60-42,188,866.20-15,360,829.20

Finding the Fourth Proportional to 28,163,235.60, 42,188,866.20 and 15,360,829.20

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Solution

The fourth proportional to 28,163,235.60, 42,188,866.20 and 15,360,829.20 is: 23,010,707.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,163,235.60 : 42,188,866.20 = 15,360,829.20 : x
  2. Step 2: Convert to fraction form
    28,163,235.60/42,188,866.20 = 15,360,829.20/x
  3. Step 3: Cross multiply
    28,163,235.60x = 42,188,866.20 × 15,360,829.20
  4. Step 4: Simplify right side
    28,163,235.60x = 648,055,967,839,853
  5. Step 5: Solve for x
    x = 648,055,967,839,853/28,163,235.60
  6. Step 6: Final answer
    x = 23,010,707.19

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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.