Home / 193,547,999.20-290,321,998.80-72,363,704.80

Finding the Fourth Proportional to 193,547,999.20, 290,321,998.80 and 72,363,704.80

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Solution

The fourth proportional to 193,547,999.20, 290,321,998.80 and 72,363,704.80 is: 108,545,557.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,547,999.20 : 290,321,998.80 = 72,363,704.80 : x
  2. Step 2: Convert to fraction form
    193,547,999.20/290,321,998.80 = 72,363,704.80/x
  3. Step 3: Cross multiply
    193,547,999.20x = 290,321,998.80 × 72,363,704.80
  4. Step 4: Simplify right side
    193,547,999.20x = 21,008,775,418,109,156
  5. Step 5: Solve for x
    x = 21,008,775,418,109,156/193,547,999.20
  6. Step 6: Final answer
    x = 108,545,557.20

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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.