Home / 15,128,717.19-20,874,774.38-9,017,714.31

Finding the Fourth Proportional to 15,128,717.19, 20,874,774.38 and 9,017,714.31

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Solution

The fourth proportional to 15,128,717.19, 20,874,774.38 and 9,017,714.31 is: 12,442,743.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,128,717.19 : 20,874,774.38 = 9,017,714.31 : x
  2. Step 2: Convert to fraction form
    15,128,717.19/20,874,774.38 = 9,017,714.31/x
  3. Step 3: Cross multiply
    15,128,717.19x = 20,874,774.38 × 9,017,714.31
  4. Step 4: Simplify right side
    15,128,717.19x = 188,242,751,599,458.81
  5. Step 5: Solve for x
    x = 188,242,751,599,458.81/15,128,717.19
  6. Step 6: Final answer
    x = 12,442,743.77

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1.5x scale

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.