Home / 28,445,016.78-39,254,227.20-15,392,275.80

Finding the Fourth Proportional to 28,445,016.78, 39,254,227.20 and 15,392,275.80

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Solution

The fourth proportional to 28,445,016.78, 39,254,227.20 and 15,392,275.80 is: 21,241,396.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,445,016.78 : 39,254,227.20 = 15,392,275.80 : x
  2. Step 2: Convert to fraction form
    28,445,016.78/39,254,227.20 = 15,392,275.80/x
  3. Step 3: Cross multiply
    28,445,016.78x = 39,254,227.20 × 15,392,275.80
  4. Step 4: Simplify right side
    28,445,016.78x = 604,211,891,378,261.88
  5. Step 5: Solve for x
    x = 604,211,891,378,261.88/28,445,016.78
  6. Step 6: Final answer
    x = 21,241,396.90

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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.