Home / 172,476,309.60-258,714,464.40-138,464,085.60

Finding the Fourth Proportional to 172,476,309.60, 258,714,464.40 and 138,464,085.60

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Solution

The fourth proportional to 172,476,309.60, 258,714,464.40 and 138,464,085.60 is: 207,696,128.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,476,309.60 : 258,714,464.40 = 138,464,085.60 : x
  2. Step 2: Convert to fraction form
    172,476,309.60/258,714,464.40 = 138,464,085.60/x
  3. Step 3: Cross multiply
    172,476,309.60x = 258,714,464.40 × 138,464,085.60
  4. Step 4: Simplify right side
    172,476,309.60x = 35,822,661,744,639,752
  5. Step 5: Solve for x
    x = 35,822,661,744,639,752/172,476,309.60
  6. Step 6: Final answer
    x = 207,696,128.40

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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.