Home / 223,026,988.86-307,759,200.42-128,947,171.92

Finding the Fourth Proportional to 223,026,988.86, 307,759,200.42 and 128,947,171.92

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Solution

The fourth proportional to 223,026,988.86, 307,759,200.42 and 128,947,171.92 is: 177,936,664.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,026,988.86 : 307,759,200.42 = 128,947,171.92 : x
  2. Step 2: Convert to fraction form
    223,026,988.86/307,759,200.42 = 128,947,171.92/x
  3. Step 3: Cross multiply
    223,026,988.86x = 307,759,200.42 × 128,947,171.92
  4. Step 4: Simplify right side
    223,026,988.86x = 39,684,678,526,519,480
  5. Step 5: Solve for x
    x = 39,684,678,526,519,480/223,026,988.86
  6. Step 6: Final answer
    x = 177,936,664.66

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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.