Home / 20,806,632.70-31,209,949.05-7,341,711.10

Finding the Fourth Proportional to 20,806,632.70, 31,209,949.05 and 7,341,711.10

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Solution

The fourth proportional to 20,806,632.70, 31,209,949.05 and 7,341,711.10 is: 11,012,566.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,806,632.70 : 31,209,949.05 = 7,341,711.10 : x
  2. Step 2: Convert to fraction form
    20,806,632.70/31,209,949.05 = 7,341,711.10/x
  3. Step 3: Cross multiply
    20,806,632.70x = 31,209,949.05 × 7,341,711.10
  4. Step 4: Simplify right side
    20,806,632.70x = 229,134,429,370,819.44
  5. Step 5: Solve for x
    x = 229,134,429,370,819.44/20,806,632.70
  6. Step 6: Final answer
    x = 11,012,566.65

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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.