Home / 290,378,726.16-400,717,596.72-158,220,808.65

Finding the Fourth Proportional to 290,378,726.16, 400,717,596.72 and 158,220,808.65

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Solution

The fourth proportional to 290,378,726.16, 400,717,596.72 and 158,220,808.65 is: 218,341,966.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,378,726.16 : 400,717,596.72 = 158,220,808.65 : x
  2. Step 2: Convert to fraction form
    290,378,726.16/400,717,596.72 = 158,220,808.65/x
  3. Step 3: Cross multiply
    290,378,726.16x = 400,717,596.72 × 158,220,808.65
  4. Step 4: Simplify right side
    290,378,726.16x = 63,401,862,193,916,320
  5. Step 5: Solve for x
    x = 63,401,862,193,916,320/290,378,726.16
  6. Step 6: Final answer
    x = 218,341,966.82

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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.