Home / 15,079,959.42-20,822,908.59-13,985,856.78

Finding the Fourth Proportional to 15,079,959.42, 20,822,908.59 and 13,985,856.78

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Solution

The fourth proportional to 15,079,959.42, 20,822,908.59 and 13,985,856.78 is: 19,312,135.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,079,959.42 : 20,822,908.59 = 13,985,856.78 : x
  2. Step 2: Convert to fraction form
    15,079,959.42/20,822,908.59 = 13,985,856.78/x
  3. Step 3: Cross multiply
    15,079,959.42x = 20,822,908.59 × 13,985,856.78
  4. Step 4: Simplify right side
    15,079,959.42x = 291,226,217,282,771.75
  5. Step 5: Solve for x
    x = 291,226,217,282,771.75/15,079,959.42
  6. Step 6: Final answer
    x = 19,312,135.34

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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.