Home / 20,632,972.80-30,949,459.20-17,798,620.80

Finding the Fourth Proportional to 20,632,972.80, 30,949,459.20 and 17,798,620.80

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Solution

The fourth proportional to 20,632,972.80, 30,949,459.20 and 17,798,620.80 is: 26,697,931.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,632,972.80 : 30,949,459.20 = 17,798,620.80 : x
  2. Step 2: Convert to fraction form
    20,632,972.80/30,949,459.20 = 17,798,620.80/x
  3. Step 3: Cross multiply
    20,632,972.80x = 30,949,459.20 × 17,798,620.80
  4. Step 4: Simplify right side
    20,632,972.80x = 550,857,688,265,871.38
  5. Step 5: Solve for x
    x = 550,857,688,265,871.38/20,632,972.80
  6. Step 6: Final answer
    x = 26,697,931.20

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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.