Home / 18,140,158.92-25,033,418.40-9,991,396.92

Finding the Fourth Proportional to 18,140,158.92, 25,033,418.40 and 9,991,396.92

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Solution

The fourth proportional to 18,140,158.92, 25,033,418.40 and 9,991,396.92 is: 13,788,127.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,140,158.92 : 25,033,418.40 = 9,991,396.92 : x
  2. Step 2: Convert to fraction form
    18,140,158.92/25,033,418.40 = 9,991,396.92/x
  3. Step 3: Cross multiply
    18,140,158.92x = 25,033,418.40 × 9,991,396.92
  4. Step 4: Simplify right side
    18,140,158.92x = 250,118,819,498,831.31
  5. Step 5: Solve for x
    x = 250,118,819,498,831.31/18,140,158.92
  6. Step 6: Final answer
    x = 13,788,127.25

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Double scale
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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.