Home / 125,215,511.20-187,823,266.80-105,127,041.40

Finding the Fourth Proportional to 125,215,511.20, 187,823,266.80 and 105,127,041.40

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Solution

The fourth proportional to 125,215,511.20, 187,823,266.80 and 105,127,041.40 is: 157,690,562.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,215,511.20 : 187,823,266.80 = 105,127,041.40 : x
  2. Step 2: Convert to fraction form
    125,215,511.20/187,823,266.80 = 105,127,041.40/x
  3. Step 3: Cross multiply
    125,215,511.20x = 187,823,266.80 × 105,127,041.40
  4. Step 4: Simplify right side
    125,215,511.20x = 19,745,304,344,766,848
  5. Step 5: Solve for x
    x = 19,745,304,344,766,848/125,215,511.20
  6. Step 6: Final answer
    x = 157,690,562.10

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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.