Home / 12,411,378.40-18,617,067.60-8,585,003.20

Finding the Fourth Proportional to 12,411,378.40, 18,617,067.60 and 8,585,003.20

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Solution

The fourth proportional to 12,411,378.40, 18,617,067.60 and 8,585,003.20 is: 12,877,504.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,411,378.40 : 18,617,067.60 = 8,585,003.20 : x
  2. Step 2: Convert to fraction form
    12,411,378.40/18,617,067.60 = 8,585,003.20/x
  3. Step 3: Cross multiply
    12,411,378.40x = 18,617,067.60 × 8,585,003.20
  4. Step 4: Simplify right side
    12,411,378.40x = 159,827,584,920,616.31
  5. Step 5: Solve for x
    x = 159,827,584,920,616.31/12,411,378.40
  6. Step 6: Final answer
    x = 12,877,504.80

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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.