Home / 10,105,436.60-15,167,668.35-5,316,562.70

Finding the Fourth Proportional to 10,105,436.60, 15,167,668.35 and 5,316,562.70

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Solution

The fourth proportional to 10,105,436.60, 15,167,668.35 and 5,316,562.70 is: 7,979,849.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,105,436.60 : 15,167,668.35 = 5,316,562.70 : x
  2. Step 2: Convert to fraction form
    10,105,436.60/15,167,668.35 = 5,316,562.70/x
  3. Step 3: Cross multiply
    10,105,436.60x = 15,167,668.35 × 5,316,562.70
  4. Step 4: Simplify right side
    10,105,436.60x = 80,639,859,795,580.55
  5. Step 5: Solve for x
    x = 80,639,859,795,580.55/10,105,436.60
  6. Step 6: Final answer
    x = 7,979,849.16

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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.