Home / 20,730,192.60-31,095,288.90-18,338,708.10

Finding the Fourth Proportional to 20,730,192.60, 31,095,288.90 and 18,338,708.10

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Solution

The fourth proportional to 20,730,192.60, 31,095,288.90 and 18,338,708.10 is: 27,508,062.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,730,192.60 : 31,095,288.90 = 18,338,708.10 : x
  2. Step 2: Convert to fraction form
    20,730,192.60/31,095,288.90 = 18,338,708.10/x
  3. Step 3: Cross multiply
    20,730,192.60x = 31,095,288.90 × 18,338,708.10
  4. Step 4: Simplify right side
    20,730,192.60x = 570,247,426,422,270.12
  5. Step 5: Solve for x
    x = 570,247,426,422,270.12/20,730,192.60
  6. Step 6: Final answer
    x = 27,508,062.15

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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.