Home / 12,450,811.20-18,676,216.80-7,348,977.60

Finding the Fourth Proportional to 12,450,811.20, 18,676,216.80 and 7,348,977.60

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Solution

The fourth proportional to 12,450,811.20, 18,676,216.80 and 7,348,977.60 is: 11,023,466.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,450,811.20 : 18,676,216.80 = 7,348,977.60 : x
  2. Step 2: Convert to fraction form
    12,450,811.20/18,676,216.80 = 7,348,977.60/x
  3. Step 3: Cross multiply
    12,450,811.20x = 18,676,216.80 × 7,348,977.60
  4. Step 4: Simplify right side
    12,450,811.20x = 137,251,098,915,943.67
  5. Step 5: Solve for x
    x = 137,251,098,915,943.67/12,450,811.20
  6. Step 6: Final answer
    x = 11,023,466.40

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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.