Home / 12,885,763.86-17,781,899.25-7,084,501.29

Finding the Fourth Proportional to 12,885,763.86, 17,781,899.25 and 7,084,501.29

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Solution

The fourth proportional to 12,885,763.86, 17,781,899.25 and 7,084,501.29 is: 9,776,361.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,885,763.86 : 17,781,899.25 = 7,084,501.29 : x
  2. Step 2: Convert to fraction form
    12,885,763.86/17,781,899.25 = 7,084,501.29/x
  3. Step 3: Cross multiply
    12,885,763.86x = 17,781,899.25 × 7,084,501.29
  4. Step 4: Simplify right side
    12,885,763.86x = 125,975,888,175,275.03
  5. Step 5: Solve for x
    x = 125,975,888,175,275.03/12,885,763.86
  6. Step 6: Final answer
    x = 9,776,361.69

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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.