Home / 291,287,957.30-401,983,306.76-159,137,513.18

Finding the Fourth Proportional to 291,287,957.30, 401,983,306.76 and 159,137,513.18

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Solution

The fourth proportional to 291,287,957.30, 401,983,306.76 and 159,137,513.18 is: 219,613,005.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,287,957.30 : 401,983,306.76 = 159,137,513.18 : x
  2. Step 2: Convert to fraction form
    291,287,957.30/401,983,306.76 = 159,137,513.18/x
  3. Step 3: Cross multiply
    291,287,957.30x = 401,983,306.76 × 159,137,513.18
  4. Step 4: Simplify right side
    291,287,957.30x = 63,970,623,777,659,488
  5. Step 5: Solve for x
    x = 63,970,623,777,659,488/291,287,957.30
  6. Step 6: Final answer
    x = 219,613,005.53

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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.