Home / 20,112,332.20-30,168,498.30-7,342,001.80

Finding the Fourth Proportional to 20,112,332.20, 30,168,498.30 and 7,342,001.80

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Solution

The fourth proportional to 20,112,332.20, 30,168,498.30 and 7,342,001.80 is: 11,013,002.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,112,332.20 : 30,168,498.30 = 7,342,001.80 : x
  2. Step 2: Convert to fraction form
    20,112,332.20/30,168,498.30 = 7,342,001.80/x
  3. Step 3: Cross multiply
    20,112,332.20x = 30,168,498.30 × 7,342,001.80
  4. Step 4: Simplify right side
    20,112,332.20x = 221,497,168,821,896.94
  5. Step 5: Solve for x
    x = 221,497,168,821,896.94/20,112,332.20
  6. Step 6: Final answer
    x = 11,013,002.70

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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.