Home / 686,394,123.18-1,029,203,439.30-627,827,000.02

Finding the Fourth Proportional to 686,394,123.18, 1,029,203,439.30 and 627,827,000.02

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Solution

The fourth proportional to 686,394,123.18, 1,029,203,439.30 and 627,827,000.02 is: 941,385,839.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,394,123.18 : 1,029,203,439.30 = 627,827,000.02 : x
  2. Step 2: Convert to fraction form
    686,394,123.18/1,029,203,439.30 = 627,827,000.02/x
  3. Step 3: Cross multiply
    686,394,123.18x = 1,029,203,439.30 × 627,827,000.02
  4. Step 4: Simplify right side
    686,394,123.18x = 646,161,707,705,985,152
  5. Step 5: Solve for x
    x = 646,161,707,705,985,152/686,394,123.18
  6. Step 6: Final answer
    x = 941,385,839.25

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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.