Home / 72,703,180.19-100,330,714.09-39,663,329.20

Finding the Fourth Proportional to 72,703,180.19, 100,330,714.09 and 39,663,329.20

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Solution

The fourth proportional to 72,703,180.19, 100,330,714.09 and 39,663,329.20 is: 54,735,571.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,703,180.19 : 100,330,714.09 = 39,663,329.20 : x
  2. Step 2: Convert to fraction form
    72,703,180.19/100,330,714.09 = 39,663,329.20/x
  3. Step 3: Cross multiply
    72,703,180.19x = 100,330,714.09 × 39,663,329.20
  4. Step 4: Simplify right side
    72,703,180.19x = 3,979,450,141,621,500.50
  5. Step 5: Solve for x
    x = 3,979,450,141,621,500.50/72,703,180.19
  6. Step 6: Final answer
    x = 54,735,571.83

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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.