Home / 15,275,923.34-21,136,286.25-13,319,877.42

Finding the Fourth Proportional to 15,275,923.34, 21,136,286.25 and 13,319,877.42

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Solution

The fourth proportional to 15,275,923.34, 21,136,286.25 and 13,319,877.42 is: 18,429,834.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,275,923.34 : 21,136,286.25 = 13,319,877.42 : x
  2. Step 2: Convert to fraction form
    15,275,923.34/21,136,286.25 = 13,319,877.42/x
  3. Step 3: Cross multiply
    15,275,923.34x = 21,136,286.25 × 13,319,877.42
  4. Step 4: Simplify right side
    15,275,923.34x = 281,532,741,964,031.50
  5. Step 5: Solve for x
    x = 281,532,741,964,031.50/15,275,923.34
  6. Step 6: Final answer
    x = 18,429,834.70

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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.