Home / 129,864,947.44-179,216,528.46-74,109,257.80

Finding the Fourth Proportional to 129,864,947.44, 179,216,528.46 and 74,109,257.80

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Solution

The fourth proportional to 129,864,947.44, 179,216,528.46 and 74,109,257.80 is: 102,272,431.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,864,947.44 : 179,216,528.46 = 74,109,257.80 : x
  2. Step 2: Convert to fraction form
    129,864,947.44/179,216,528.46 = 74,109,257.80/x
  3. Step 3: Cross multiply
    129,864,947.44x = 179,216,528.46 × 74,109,257.80
  4. Step 4: Simplify right side
    129,864,947.44x = 13,281,603,909,663,178
  5. Step 5: Solve for x
    x = 13,281,603,909,663,178/129,864,947.44
  6. Step 6: Final answer
    x = 102,272,431.26

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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.