Home / 146,608,689.60-219,768,400.80-81,943,473.60

Finding the Fourth Proportional to 146,608,689.60, 219,768,400.80 and 81,943,473.60

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Solution

The fourth proportional to 146,608,689.60, 219,768,400.80 and 81,943,473.60 is: 122,834,370.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,608,689.60 : 219,768,400.80 = 81,943,473.60 : x
  2. Step 2: Convert to fraction form
    146,608,689.60/219,768,400.80 = 81,943,473.60/x
  3. Step 3: Cross multiply
    146,608,689.60x = 219,768,400.80 × 81,943,473.60
  4. Step 4: Simplify right side
    146,608,689.60x = 18,008,586,149,069,018
  5. Step 5: Solve for x
    x = 18,008,586,149,069,018/146,608,689.60
  6. Step 6: Final answer
    x = 122,834,370.86

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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.