Home / 257,815,855.30-386,156,912.55-223,803,631.30

Finding the Fourth Proportional to 257,815,855.30, 386,156,912.55 and 223,803,631.30

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Solution

The fourth proportional to 257,815,855.30, 386,156,912.55 and 223,803,631.30 is: 335,213,360.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,815,855.30 : 386,156,912.55 = 223,803,631.30 : x
  2. Step 2: Convert to fraction form
    257,815,855.30/386,156,912.55 = 223,803,631.30/x
  3. Step 3: Cross multiply
    257,815,855.30x = 386,156,912.55 × 223,803,631.30
  4. Step 4: Simplify right side
    257,815,855.30x = 86,423,319,280,286,544
  5. Step 5: Solve for x
    x = 86,423,319,280,286,544/257,815,855.30
  6. Step 6: Final answer
    x = 335,213,360.64

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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.