Home / 15,312,818.58-21,133,178.80-11,438,613.70

Finding the Fourth Proportional to 15,312,818.58, 21,133,178.80 and 11,438,613.70

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Solution

The fourth proportional to 15,312,818.58, 21,133,178.80 and 11,438,613.70 is: 15,786,399.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,312,818.58 : 21,133,178.80 = 11,438,613.70 : x
  2. Step 2: Convert to fraction form
    15,312,818.58/21,133,178.80 = 11,438,613.70/x
  3. Step 3: Cross multiply
    15,312,818.58x = 21,133,178.80 × 11,438,613.70
  4. Step 4: Simplify right side
    15,312,818.58x = 241,734,268,546,229.56
  5. Step 5: Solve for x
    x = 241,734,268,546,229.56/15,312,818.58
  6. Step 6: Final answer
    x = 15,786,399.30

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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.