Home / 18,209,632.53-25,128,545.11-9,949,978.36

Finding the Fourth Proportional to 18,209,632.53, 25,128,545.11 and 9,949,978.36

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Solution

The fourth proportional to 18,209,632.53, 25,128,545.11 and 9,949,978.36 is: 13,730,561.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,209,632.53 : 25,128,545.11 = 9,949,978.36 : x
  2. Step 2: Convert to fraction form
    18,209,632.53/25,128,545.11 = 9,949,978.36/x
  3. Step 3: Cross multiply
    18,209,632.53x = 25,128,545.11 × 9,949,978.36
  4. Step 4: Simplify right side
    18,209,632.53x = 250,028,480,062,783.81
  5. Step 5: Solve for x
    x = 250,028,480,062,783.81/18,209,632.53
  6. Step 6: Final answer
    x = 13,730,561.54

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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.