Home / 20,402,012-28,154,776.56-11,234,632.88

Finding the Fourth Proportional to 20,402,012, 28,154,776.56 and 11,234,632.88

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Solution

The fourth proportional to 20,402,012, 28,154,776.56 and 11,234,632.88 is: 15,503,793.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,402,012 : 28,154,776.56 = 11,234,632.88 : x
  2. Step 2: Convert to fraction form
    20,402,012/28,154,776.56 = 11,234,632.88/x
  3. Step 3: Cross multiply
    20,402,012x = 28,154,776.56 × 11,234,632.88
  4. Step 4: Simplify right side
    20,402,012x = 316,308,578,470,029.31
  5. Step 5: Solve for x
    x = 316,308,578,470,029.31/20,402,012
  6. Step 6: Final answer
    x = 15,503,793.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.