Home / 20,080,789.20-27,711,703.80-10,913,432.40

Finding the Fourth Proportional to 20,080,789.20, 27,711,703.80 and 10,913,432.40

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Solution

The fourth proportional to 20,080,789.20, 27,711,703.80 and 10,913,432.40 is: 15,060,653.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,080,789.20 : 27,711,703.80 = 10,913,432.40 : x
  2. Step 2: Convert to fraction form
    20,080,789.20/27,711,703.80 = 10,913,432.40/x
  3. Step 3: Cross multiply
    20,080,789.20x = 27,711,703.80 × 10,913,432.40
  4. Step 4: Simplify right side
    20,080,789.20x = 302,429,806,110,123.12
  5. Step 5: Solve for x
    x = 302,429,806,110,123.12/20,080,789.20
  6. Step 6: Final answer
    x = 15,060,653.40

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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.