Home / 138,248,000.24-190,785,052.72-75,528,160.54

Finding the Fourth Proportional to 138,248,000.24, 190,785,052.72 and 75,528,160.54

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Solution

The fourth proportional to 138,248,000.24, 190,785,052.72 and 75,528,160.54 is: 104,230,398.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,248,000.24 : 190,785,052.72 = 75,528,160.54 : x
  2. Step 2: Convert to fraction form
    138,248,000.24/190,785,052.72 = 75,528,160.54/x
  3. Step 3: Cross multiply
    138,248,000.24x = 190,785,052.72 × 75,528,160.54
  4. Step 4: Simplify right side
    138,248,000.24x = 14,409,644,090,468,524
  5. Step 5: Solve for x
    x = 14,409,644,090,468,524/138,248,000.24
  6. Step 6: Final answer
    x = 104,230,398.02

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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.