Home / 12,208,276.40-18,312,414.60-7,425,345.20

Finding the Fourth Proportional to 12,208,276.40, 18,312,414.60 and 7,425,345.20

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Solution

The fourth proportional to 12,208,276.40, 18,312,414.60 and 7,425,345.20 is: 11,138,017.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,208,276.40 : 18,312,414.60 = 7,425,345.20 : x
  2. Step 2: Convert to fraction form
    12,208,276.40/18,312,414.60 = 7,425,345.20/x
  3. Step 3: Cross multiply
    12,208,276.40x = 18,312,414.60 × 7,425,345.20
  4. Step 4: Simplify right side
    12,208,276.40x = 135,975,999,850,519.94
  5. Step 5: Solve for x
    x = 135,975,999,850,519.94/12,208,276.40
  6. Step 6: Final answer
    x = 11,138,017.80

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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.