Home / 1,121,639,504.40-1,680,955,351.92-872,945,057.52

Finding the Fourth Proportional to 1,121,639,504.40, 1,680,955,351.92 and 872,945,057.52

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Solution

The fourth proportional to 1,121,639,504.40, 1,680,955,351.92 and 872,945,057.52 is: 1,308,247,133.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,639,504.40 : 1,680,955,351.92 = 872,945,057.52 : x
  2. Step 2: Convert to fraction form
    1,121,639,504.40/1,680,955,351.92 = 872,945,057.52/x
  3. Step 3: Cross multiply
    1,121,639,504.40x = 1,680,955,351.92 × 872,945,057.52
  4. Step 4: Simplify right side
    1,121,639,504.40x = 1,467,381,666,370,356,224
  5. Step 5: Solve for x
    x = 1,467,381,666,370,356,224/1,121,639,504.40
  6. Step 6: Final answer
    x = 1,308,247,133.43

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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.