Home / 12,578,830.80-18,868,246.20-8,043,867.60

Finding the Fourth Proportional to 12,578,830.80, 18,868,246.20 and 8,043,867.60

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Solution

The fourth proportional to 12,578,830.80, 18,868,246.20 and 8,043,867.60 is: 12,065,801.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,578,830.80 : 18,868,246.20 = 8,043,867.60 : x
  2. Step 2: Convert to fraction form
    12,578,830.80/18,868,246.20 = 8,043,867.60/x
  3. Step 3: Cross multiply
    12,578,830.80x = 18,868,246.20 × 8,043,867.60
  4. Step 4: Simplify right side
    12,578,830.80x = 151,773,674,277,003.09
  5. Step 5: Solve for x
    x = 151,773,674,277,003.09/12,578,830.80
  6. Step 6: Final answer
    x = 12,065,801.40

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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.