Home / 33,720,390.75-46,535,267.60-20,665,128.42

Finding the Fourth Proportional to 33,720,390.75, 46,535,267.60 and 20,665,128.42

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Solution

The fourth proportional to 33,720,390.75, 46,535,267.60 and 20,665,128.42 is: 28,518,568.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,720,390.75 : 46,535,267.60 = 20,665,128.42 : x
  2. Step 2: Convert to fraction form
    33,720,390.75/46,535,267.60 = 20,665,128.42/x
  3. Step 3: Cross multiply
    33,720,390.75x = 46,535,267.60 × 20,665,128.42
  4. Step 4: Simplify right side
    33,720,390.75x = 961,657,280,987,233.88
  5. Step 5: Solve for x
    x = 961,657,280,987,233.88/33,720,390.75
  6. Step 6: Final answer
    x = 28,518,568.72

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Double scale
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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.