Home / 213,094,816.32-291,935,013.21-205,127,781.44

Finding the Fourth Proportional to 213,094,816.32, 291,935,013.21 and 205,127,781.44

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Solution

The fourth proportional to 213,094,816.32, 291,935,013.21 and 205,127,781.44 is: 281,020,358.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,094,816.32 : 291,935,013.21 = 205,127,781.44 : x
  2. Step 2: Convert to fraction form
    213,094,816.32/291,935,013.21 = 205,127,781.44/x
  3. Step 3: Cross multiply
    213,094,816.32x = 291,935,013.21 × 205,127,781.44
  4. Step 4: Simplify right side
    213,094,816.32x = 59,883,981,582,195,488
  5. Step 5: Solve for x
    x = 59,883,981,582,195,488/213,094,816.32
  6. Step 6: Final answer
    x = 281,020,358.06

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.