Home / 290,335,129.92-400,661,271-158,175,714.96

Finding the Fourth Proportional to 290,335,129.92, 400,661,271 and 158,175,714.96

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Solution

The fourth proportional to 290,335,129.92, 400,661,271 and 158,175,714.96 is: 218,281,828.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,335,129.92 : 400,661,271 = 158,175,714.96 : x
  2. Step 2: Convert to fraction form
    290,335,129.92/400,661,271 = 158,175,714.96/x
  3. Step 3: Cross multiply
    290,335,129.92x = 400,661,271 × 158,175,714.96
  4. Step 4: Simplify right side
    290,335,129.92x = 63,374,882,997,207,320
  5. Step 5: Solve for x
    x = 63,374,882,997,207,320/290,335,129.92
  6. Step 6: Final answer
    x = 218,281,828.36

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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.