Home / 12,290,419.40-18,435,629.10-8,464,044.20

Finding the Fourth Proportional to 12,290,419.40, 18,435,629.10 and 8,464,044.20

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Solution

The fourth proportional to 12,290,419.40, 18,435,629.10 and 8,464,044.20 is: 12,696,066.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,290,419.40 : 18,435,629.10 = 8,464,044.20 : x
  2. Step 2: Convert to fraction form
    12,290,419.40/18,435,629.10 = 8,464,044.20/x
  3. Step 3: Cross multiply
    12,290,419.40x = 18,435,629.10 × 8,464,044.20
  4. Step 4: Simplify right side
    12,290,419.40x = 156,039,979,557,206.22
  5. Step 5: Solve for x
    x = 156,039,979,557,206.22/12,290,419.40
  6. Step 6: Final answer
    x = 12,696,066.30

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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.