Home / 13,039,251.20-19,543,130.40-6,646,212.80

Finding the Fourth Proportional to 13,039,251.20, 19,543,130.40 and 6,646,212.80

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Solution

The fourth proportional to 13,039,251.20, 19,543,130.40 and 6,646,212.80 is: 9,961,293.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,039,251.20 : 19,543,130.40 = 6,646,212.80 : x
  2. Step 2: Convert to fraction form
    13,039,251.20/19,543,130.40 = 6,646,212.80/x
  3. Step 3: Cross multiply
    13,039,251.20x = 19,543,130.40 × 6,646,212.80
  4. Step 4: Simplify right side
    13,039,251.20x = 129,887,803,416,549.11
  5. Step 5: Solve for x
    x = 129,887,803,416,549.11/13,039,251.20
  6. Step 6: Final answer
    x = 9,961,293.13

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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.