Home / 193,632,005.70-290,448,008.55-72,447,711.30

Finding the Fourth Proportional to 193,632,005.70, 290,448,008.55 and 72,447,711.30

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Solution

The fourth proportional to 193,632,005.70, 290,448,008.55 and 72,447,711.30 is: 108,671,566.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,632,005.70 : 290,448,008.55 = 72,447,711.30 : x
  2. Step 2: Convert to fraction form
    193,632,005.70/290,448,008.55 = 72,447,711.30/x
  3. Step 3: Cross multiply
    193,632,005.70x = 290,448,008.55 × 72,447,711.30
  4. Step 4: Simplify right side
    193,632,005.70x = 21,042,293,471,090,332
  5. Step 5: Solve for x
    x = 21,042,293,471,090,332/193,632,005.70
  6. Step 6: Final answer
    x = 108,671,566.95

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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.