Home / 38,358,911.32-52,936,077.96-20,956,383.70

Finding the Fourth Proportional to 38,358,911.32, 52,936,077.96 and 20,956,383.70

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Solution

The fourth proportional to 38,358,911.32, 52,936,077.96 and 20,956,383.70 is: 28,920,235.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,358,911.32 : 52,936,077.96 = 20,956,383.70 : x
  2. Step 2: Convert to fraction form
    38,358,911.32/52,936,077.96 = 20,956,383.70/x
  3. Step 3: Cross multiply
    38,358,911.32x = 52,936,077.96 × 20,956,383.70
  4. Step 4: Simplify right side
    38,358,911.32x = 1,109,348,761,302,873.25
  5. Step 5: Solve for x
    x = 1,109,348,761,302,873.25/38,358,911.32
  6. Step 6: Final answer
    x = 28,920,235.82

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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.