Home / 38,358,913.32-52,936,080.72-20,956,385.70

Finding the Fourth Proportional to 38,358,913.32, 52,936,080.72 and 20,956,385.70

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Solution

The fourth proportional to 38,358,913.32, 52,936,080.72 and 20,956,385.70 is: 28,920,238.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,358,913.32 : 52,936,080.72 = 20,956,385.70 : x
  2. Step 2: Convert to fraction form
    38,358,913.32/52,936,080.72 = 20,956,385.70/x
  3. Step 3: Cross multiply
    38,358,913.32x = 52,936,080.72 × 20,956,385.70
  4. Step 4: Simplify right side
    38,358,913.32x = 1,109,348,925,014,653.62
  5. Step 5: Solve for x
    x = 1,109,348,925,014,653.62/38,358,913.32
  6. Step 6: Final answer
    x = 28,920,238.58

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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.