Home / 12,251,719.20-18,377,578.80-7,968,698.40

Finding the Fourth Proportional to 12,251,719.20, 18,377,578.80 and 7,968,698.40

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Solution

The fourth proportional to 12,251,719.20, 18,377,578.80 and 7,968,698.40 is: 11,953,047.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,251,719.20 : 18,377,578.80 = 7,968,698.40 : x
  2. Step 2: Convert to fraction form
    12,251,719.20/18,377,578.80 = 7,968,698.40/x
  3. Step 3: Cross multiply
    12,251,719.20x = 18,377,578.80 × 7,968,698.40
  4. Step 4: Simplify right side
    12,251,719.20x = 146,445,382,779,433.94
  5. Step 5: Solve for x
    x = 146,445,382,779,433.94/12,251,719.20
  6. Step 6: Final answer
    x = 11,953,047.60

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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.