Home / 30,856,425.21-42,581,641.70-16,917,550.41

Finding the Fourth Proportional to 30,856,425.21, 42,581,641.70 and 16,917,550.41

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Solution

The fourth proportional to 30,856,425.21, 42,581,641.70 and 16,917,550.41 is: 23,346,096.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,856,425.21 : 42,581,641.70 = 16,917,550.41 : x
  2. Step 2: Convert to fraction form
    30,856,425.21/42,581,641.70 = 16,917,550.41/x
  3. Step 3: Cross multiply
    30,856,425.21x = 42,581,641.70 × 16,917,550.41
  4. Step 4: Simplify right side
    30,856,425.21x = 720,377,069,915,720.38
  5. Step 5: Solve for x
    x = 720,377,069,915,720.38/30,856,425.21
  6. Step 6: Final answer
    x = 23,346,096.15

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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.