Home / 210,026,742.30-315,040,113.45-181,305,308.70

Finding the Fourth Proportional to 210,026,742.30, 315,040,113.45 and 181,305,308.70

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Solution

The fourth proportional to 210,026,742.30, 315,040,113.45 and 181,305,308.70 is: 271,957,963.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,026,742.30 : 315,040,113.45 = 181,305,308.70 : x
  2. Step 2: Convert to fraction form
    210,026,742.30/315,040,113.45 = 181,305,308.70/x
  3. Step 3: Cross multiply
    210,026,742.30x = 315,040,113.45 × 181,305,308.70
  4. Step 4: Simplify right side
    210,026,742.30x = 57,118,445,021,935,264
  5. Step 5: Solve for x
    x = 57,118,445,021,935,264/210,026,742.30
  6. Step 6: Final answer
    x = 271,957,963.05

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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.