Home / 10,345,143.60-15,491,143.35-8,201,664.90

Finding the Fourth Proportional to 10,345,143.60, 15,491,143.35 and 8,201,664.90

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Solution

The fourth proportional to 10,345,143.60, 15,491,143.35 and 8,201,664.90 is: 12,281,430.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,345,143.60 : 15,491,143.35 = 8,201,664.90 : x
  2. Step 2: Convert to fraction form
    10,345,143.60/15,491,143.35 = 8,201,664.90/x
  3. Step 3: Cross multiply
    10,345,143.60x = 15,491,143.35 × 8,201,664.90
  4. Step 4: Simplify right side
    10,345,143.60x = 127,053,166,674,563.42
  5. Step 5: Solve for x
    x = 127,053,166,674,563.42/10,345,143.60
  6. Step 6: Final answer
    x = 12,281,430.94

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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.