Home / 280,031,286.40-420,044,164.80-88,555,062.40

Finding the Fourth Proportional to 280,031,286.40, 420,044,164.80 and 88,555,062.40

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Solution

The fourth proportional to 280,031,286.40, 420,044,164.80 and 88,555,062.40 is: 132,831,719.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,031,286.40 : 420,044,164.80 = 88,555,062.40 : x
  2. Step 2: Convert to fraction form
    280,031,286.40/420,044,164.80 = 88,555,062.40/x
  3. Step 3: Cross multiply
    280,031,286.40x = 420,044,164.80 × 88,555,062.40
  4. Step 4: Simplify right side
    280,031,286.40x = 37,197,037,224,619,888
  5. Step 5: Solve for x
    x = 37,197,037,224,619,888/280,031,286.40
  6. Step 6: Final answer
    x = 132,831,719.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.