Home / 10,890,042.60-16,335,063.90-9,189,431.40

Finding the Fourth Proportional to 10,890,042.60, 16,335,063.90 and 9,189,431.40

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Solution

The fourth proportional to 10,890,042.60, 16,335,063.90 and 9,189,431.40 is: 13,784,147.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,890,042.60 : 16,335,063.90 = 9,189,431.40 : x
  2. Step 2: Convert to fraction form
    10,890,042.60/16,335,063.90 = 9,189,431.40/x
  3. Step 3: Cross multiply
    10,890,042.60x = 16,335,063.90 × 9,189,431.40
  4. Step 4: Simplify right side
    10,890,042.60x = 150,109,949,123,666.47
  5. Step 5: Solve for x
    x = 150,109,949,123,666.47/10,890,042.60
  6. Step 6: Final answer
    x = 13,784,147.10

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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.