Home / 20,042,002.80-30,063,004.20-17,172,221.40

Finding the Fourth Proportional to 20,042,002.80, 30,063,004.20 and 17,172,221.40

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Solution

The fourth proportional to 20,042,002.80, 30,063,004.20 and 17,172,221.40 is: 25,758,332.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,042,002.80 : 30,063,004.20 = 17,172,221.40 : x
  2. Step 2: Convert to fraction form
    20,042,002.80/30,063,004.20 = 17,172,221.40/x
  3. Step 3: Cross multiply
    20,042,002.80x = 30,063,004.20 × 17,172,221.40
  4. Step 4: Simplify right side
    20,042,002.80x = 516,248,564,071,529.81
  5. Step 5: Solve for x
    x = 516,248,564,071,529.81/20,042,002.80
  6. Step 6: Final answer
    x = 25,758,332.10

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1.5x scale

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.