Home / 40,564,599.60-55,979,196.65-21,979,725.06

Finding the Fourth Proportional to 40,564,599.60, 55,979,196.65 and 21,979,725.06

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Solution

The fourth proportional to 40,564,599.60, 55,979,196.65 and 21,979,725.06 is: 30,332,047.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,564,599.60 : 55,979,196.65 = 21,979,725.06 : x
  2. Step 2: Convert to fraction form
    40,564,599.60/55,979,196.65 = 21,979,725.06/x
  3. Step 3: Cross multiply
    40,564,599.60x = 55,979,196.65 × 21,979,725.06
  4. Step 4: Simplify right side
    40,564,599.60x = 1,230,407,351,446,673
  5. Step 5: Solve for x
    x = 1,230,407,351,446,673/40,564,599.60
  6. Step 6: Final answer
    x = 30,332,047.24

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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.