Home / 57,091,155.32-78,785,872.28-30,985,673.48

Finding the Fourth Proportional to 57,091,155.32, 78,785,872.28 and 30,985,673.48

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Solution

The fourth proportional to 57,091,155.32, 78,785,872.28 and 30,985,673.48 is: 42,760,271.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,091,155.32 : 78,785,872.28 = 30,985,673.48 : x
  2. Step 2: Convert to fraction form
    57,091,155.32/78,785,872.28 = 30,985,673.48/x
  3. Step 3: Cross multiply
    57,091,155.32x = 78,785,872.28 × 30,985,673.48
  4. Step 4: Simplify right side
    57,091,155.32x = 2,441,233,313,305,063
  5. Step 5: Solve for x
    x = 2,441,233,313,305,063/57,091,155.32
  6. Step 6: Final answer
    x = 42,760,271.70

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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.