Home / 38,358,905.81-52,936,070.36-20,956,378.19

Finding the Fourth Proportional to 38,358,905.81, 52,936,070.36 and 20,956,378.19

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Solution

The fourth proportional to 38,358,905.81, 52,936,070.36 and 20,956,378.19 is: 28,920,228.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,358,905.81 : 52,936,070.36 = 20,956,378.19 : x
  2. Step 2: Convert to fraction form
    38,358,905.81/52,936,070.36 = 20,956,378.19/x
  3. Step 3: Cross multiply
    38,358,905.81x = 52,936,070.36 × 20,956,378.19
  4. Step 4: Simplify right side
    38,358,905.81x = 1,109,348,309,987,147.12
  5. Step 5: Solve for x
    x = 1,109,348,309,987,147.12/38,358,905.81
  6. Step 6: Final answer
    x = 28,920,228.22

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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.