Home / 13,260,656.64-18,288,788.66-7,822,899.84

Finding the Fourth Proportional to 13,260,656.64, 18,288,788.66 and 7,822,899.84

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Solution

The fourth proportional to 13,260,656.64, 18,288,788.66 and 7,822,899.84 is: 10,789,161.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,260,656.64 : 18,288,788.66 = 7,822,899.84 : x
  2. Step 2: Convert to fraction form
    13,260,656.64/18,288,788.66 = 7,822,899.84/x
  3. Step 3: Cross multiply
    13,260,656.64x = 18,288,788.66 × 7,822,899.84
  4. Step 4: Simplify right side
    13,260,656.64x = 143,071,361,984,915.97
  5. Step 5: Solve for x
    x = 143,071,361,984,915.97/13,260,656.64
  6. Step 6: Final answer
    x = 10,789,161.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.