Home / 859,212,344.28-1,288,123,419-268,698,771

Finding the Fourth Proportional to 859,212,344.28, 1,288,123,419 and 268,698,771

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Solution

The fourth proportional to 859,212,344.28, 1,288,123,419 and 268,698,771 is: 402,830,780.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,212,344.28 : 1,288,123,419 = 268,698,771 : x
  2. Step 2: Convert to fraction form
    859,212,344.28/1,288,123,419 = 268,698,771/x
  3. Step 3: Cross multiply
    859,212,344.28x = 1,288,123,419 × 268,698,771
  4. Step 4: Simplify right side
    859,212,344.28x = 346,117,179,581,618,048
  5. Step 5: Solve for x
    x = 346,117,179,581,618,048/859,212,344.28
  6. Step 6: Final answer
    x = 402,830,780.87

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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.