Home / 13,310,631.20-18,368,672.40-7,199,059.70

Finding the Fourth Proportional to 13,310,631.20, 18,368,672.40 and 7,199,059.70

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Solution

The fourth proportional to 13,310,631.20, 18,368,672.40 and 7,199,059.70 is: 9,934,703.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,310,631.20 : 18,368,672.40 = 7,199,059.70 : x
  2. Step 2: Convert to fraction form
    13,310,631.20/18,368,672.40 = 7,199,059.70/x
  3. Step 3: Cross multiply
    13,310,631.20x = 18,368,672.40 × 7,199,059.70
  4. Step 4: Simplify right side
    13,310,631.20x = 132,237,169,125,498.91
  5. Step 5: Solve for x
    x = 132,237,169,125,498.91/13,310,631.20
  6. Step 6: Final answer
    x = 9,934,703.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.