Home / 686,914,146.35-1,030,486,145.49-539,355,753.70

Finding the Fourth Proportional to 686,914,146.35, 1,030,486,145.49 and 539,355,753.70

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Solution

The fourth proportional to 686,914,146.35, 1,030,486,145.49 and 539,355,753.70 is: 809,123,868.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,914,146.35 : 1,030,486,145.49 = 539,355,753.70 : x
  2. Step 2: Convert to fraction form
    686,914,146.35/1,030,486,145.49 = 539,355,753.70/x
  3. Step 3: Cross multiply
    686,914,146.35x = 1,030,486,145.49 × 539,355,753.70
  4. Step 4: Simplify right side
    686,914,146.35x = 555,798,631,675,590,592
  5. Step 5: Solve for x
    x = 555,798,631,675,590,592/686,914,146.35
  6. Step 6: Final answer
    x = 809,123,868.87

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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.