Home / 20,173,885.90-30,260,828.85-17,780,433.10

Finding the Fourth Proportional to 20,173,885.90, 30,260,828.85 and 17,780,433.10

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Solution

The fourth proportional to 20,173,885.90, 30,260,828.85 and 17,780,433.10 is: 26,670,649.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,173,885.90 : 30,260,828.85 = 17,780,433.10 : x
  2. Step 2: Convert to fraction form
    20,173,885.90/30,260,828.85 = 17,780,433.10/x
  3. Step 3: Cross multiply
    20,173,885.90x = 30,260,828.85 × 17,780,433.10
  4. Step 4: Simplify right side
    20,173,885.90x = 538,050,642,917,975
  5. Step 5: Solve for x
    x = 538,050,642,917,975/20,173,885.90
  6. Step 6: Final answer
    x = 26,670,649.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.