Home / 28,608,165.60-42,912,248.40-9,441,880.80

Finding the Fourth Proportional to 28,608,165.60, 42,912,248.40 and 9,441,880.80

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Solution

The fourth proportional to 28,608,165.60, 42,912,248.40 and 9,441,880.80 is: 14,162,821.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,608,165.60 : 42,912,248.40 = 9,441,880.80 : x
  2. Step 2: Convert to fraction form
    28,608,165.60/42,912,248.40 = 9,441,880.80/x
  3. Step 3: Cross multiply
    28,608,165.60x = 42,912,248.40 × 9,441,880.80
  4. Step 4: Simplify right side
    28,608,165.60x = 405,172,334,252,790.75
  5. Step 5: Solve for x
    x = 405,172,334,252,790.75/28,608,165.60
  6. Step 6: Final answer
    x = 14,162,821.20

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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.