Home / 288,687,769.20-433,031,653.80-196,854,764.40

Finding the Fourth Proportional to 288,687,769.20, 433,031,653.80 and 196,854,764.40

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Solution

The fourth proportional to 288,687,769.20, 433,031,653.80 and 196,854,764.40 is: 295,282,146.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,687,769.20 : 433,031,653.80 = 196,854,764.40 : x
  2. Step 2: Convert to fraction form
    288,687,769.20/433,031,653.80 = 196,854,764.40/x
  3. Step 3: Cross multiply
    288,687,769.20x = 433,031,653.80 × 196,854,764.40
  4. Step 4: Simplify right side
    288,687,769.20x = 85,244,344,186,541,376
  5. Step 5: Solve for x
    x = 85,244,344,186,541,376/288,687,769.20
  6. Step 6: Final answer
    x = 295,282,146.60

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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.