Home / 38,416,714.92-53,012,192.58-21,012,160.68

Finding the Fourth Proportional to 38,416,714.92, 53,012,192.58 and 21,012,160.68

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Solution

The fourth proportional to 38,416,714.92, 53,012,192.58 and 21,012,160.68 is: 28,995,209.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,416,714.92 : 53,012,192.58 = 21,012,160.68 : x
  2. Step 2: Convert to fraction form
    38,416,714.92/53,012,192.58 = 21,012,160.68/x
  3. Step 3: Cross multiply
    38,416,714.92x = 53,012,192.58 × 21,012,160.68
  4. Step 4: Simplify right side
    38,416,714.92x = 1,113,900,708,490,063.75
  5. Step 5: Solve for x
    x = 1,113,900,708,490,063.75/38,416,714.92
  6. Step 6: Final answer
    x = 28,995,209.79

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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.