Home / 123,140,257.74-169,936,666.47-74,250,835.02

Finding the Fourth Proportional to 123,140,257.74, 169,936,666.47 and 74,250,835.02

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Solution

The fourth proportional to 123,140,257.74, 169,936,666.47 and 74,250,835.02 is: 102,468,028.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,140,257.74 : 169,936,666.47 = 74,250,835.02 : x
  2. Step 2: Convert to fraction form
    123,140,257.74/169,936,666.47 = 74,250,835.02/x
  3. Step 3: Cross multiply
    123,140,257.74x = 169,936,666.47 × 74,250,835.02
  4. Step 4: Simplify right side
    123,140,257.74x = 12,617,939,385,912,734
  5. Step 5: Solve for x
    x = 12,617,939,385,912,734/123,140,257.74
  6. Step 6: Final answer
    x = 102,468,028.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.