Home / 188,129,097.40-282,083,814.96-72,979,085.92

Finding the Fourth Proportional to 188,129,097.40, 282,083,814.96 and 72,979,085.92

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Solution

The fourth proportional to 188,129,097.40, 282,083,814.96 and 72,979,085.92 is: 109,426,023.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,129,097.40 : 282,083,814.96 = 72,979,085.92 : x
  2. Step 2: Convert to fraction form
    188,129,097.40/282,083,814.96 = 72,979,085.92/x
  3. Step 3: Cross multiply
    188,129,097.40x = 282,083,814.96 × 72,979,085.92
  4. Step 4: Simplify right side
    188,129,097.40x = 20,586,218,968,607,220
  5. Step 5: Solve for x
    x = 20,586,218,968,607,220/188,129,097.40
  6. Step 6: Final answer
    x = 109,426,023.16

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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.