Home / 123,689,570.40-185,474,566.80-45,912,843.36

Finding the Fourth Proportional to 123,689,570.40, 185,474,566.80 and 45,912,843.36

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Solution

The fourth proportional to 123,689,570.40, 185,474,566.80 and 45,912,843.36 is: 68,847,071.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,689,570.40 : 185,474,566.80 = 45,912,843.36 : x
  2. Step 2: Convert to fraction form
    123,689,570.40/185,474,566.80 = 45,912,843.36/x
  3. Step 3: Cross multiply
    123,689,570.40x = 185,474,566.80 × 45,912,843.36
  4. Step 4: Simplify right side
    123,689,570.40x = 8,515,664,732,752,257
  5. Step 5: Solve for x
    x = 8,515,664,732,752,257/123,689,570.40
  6. Step 6: Final answer
    x = 68,847,071.79

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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.