Home / 99,873,005.40-149,809,508.10-72,450,649.80

Finding the Fourth Proportional to 99,873,005.40, 149,809,508.10 and 72,450,649.80

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Solution

The fourth proportional to 99,873,005.40, 149,809,508.10 and 72,450,649.80 is: 108,675,974.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,873,005.40 : 149,809,508.10 = 72,450,649.80 : x
  2. Step 2: Convert to fraction form
    99,873,005.40/149,809,508.10 = 72,450,649.80/x
  3. Step 3: Cross multiply
    99,873,005.40x = 149,809,508.10 × 72,450,649.80
  4. Step 4: Simplify right side
    99,873,005.40x = 10,853,796,208,063,362
  5. Step 5: Solve for x
    x = 10,853,796,208,063,362/99,873,005.40
  6. Step 6: Final answer
    x = 108,675,974.70

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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.