Home / 13,287,171.40-18,336,296.78-7,175,599.90

Finding the Fourth Proportional to 13,287,171.40, 18,336,296.78 and 7,175,599.90

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Solution

The fourth proportional to 13,287,171.40, 18,336,296.78 and 7,175,599.90 is: 9,902,328.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,287,171.40 : 18,336,296.78 = 7,175,599.90 : x
  2. Step 2: Convert to fraction form
    13,287,171.40/18,336,296.78 = 7,175,599.90/x
  3. Step 3: Cross multiply
    13,287,171.40x = 18,336,296.78 × 7,175,599.90
  4. Step 4: Simplify right side
    13,287,171.40x = 131,573,929,340,938.34
  5. Step 5: Solve for x
    x = 131,573,929,340,938.34/13,287,171.40
  6. Step 6: Final answer
    x = 9,902,328.00

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1.5x scale

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.