Home / 12,458,519.40-18,687,779.10-7,335,690.60

Finding the Fourth Proportional to 12,458,519.40, 18,687,779.10 and 7,335,690.60

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Solution

The fourth proportional to 12,458,519.40, 18,687,779.10 and 7,335,690.60 is: 11,003,535.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,458,519.40 : 18,687,779.10 = 7,335,690.60 : x
  2. Step 2: Convert to fraction form
    12,458,519.40/18,687,779.10 = 7,335,690.60/x
  3. Step 3: Cross multiply
    12,458,519.40x = 18,687,779.10 × 7,335,690.60
  4. Step 4: Simplify right side
    12,458,519.40x = 137,087,765,478,746.47
  5. Step 5: Solve for x
    x = 137,087,765,478,746.47/12,458,519.40
  6. Step 6: Final answer
    x = 11,003,535.90

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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.