Home / 690,965,011.28-1,036,447,516.97-230,903,180.59

Finding the Fourth Proportional to 690,965,011.28, 1,036,447,516.97 and 230,903,180.59

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Solution

The fourth proportional to 690,965,011.28, 1,036,447,516.97 and 230,903,180.59 is: 346,354,770.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,965,011.28 : 1,036,447,516.97 = 230,903,180.59 : x
  2. Step 2: Convert to fraction form
    690,965,011.28/1,036,447,516.97 = 230,903,180.59/x
  3. Step 3: Cross multiply
    690,965,011.28x = 1,036,447,516.97 × 230,903,180.59
  4. Step 4: Simplify right side
    690,965,011.28x = 239,319,028,182,981,024
  5. Step 5: Solve for x
    x = 239,319,028,182,981,024/690,965,011.28
  6. Step 6: Final answer
    x = 346,354,770.90

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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.