Home / 40,564,598.84-55,979,195.61-21,979,724.32

Finding the Fourth Proportional to 40,564,598.84, 55,979,195.61 and 21,979,724.32

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Solution

The fourth proportional to 40,564,598.84, 55,979,195.61 and 21,979,724.32 is: 30,332,046.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,564,598.84 : 55,979,195.61 = 21,979,724.32 : x
  2. Step 2: Convert to fraction form
    40,564,598.84/55,979,195.61 = 21,979,724.32/x
  3. Step 3: Cross multiply
    40,564,598.84x = 55,979,195.61 × 21,979,724.32
  4. Step 4: Simplify right side
    40,564,598.84x = 1,230,407,287,163,154.25
  5. Step 5: Solve for x
    x = 1,230,407,287,163,154.25/40,564,598.84
  6. Step 6: Final answer
    x = 30,332,046.23

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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.