Home / 12,885,512.68-17,782,042.98-7,084,887.40

Finding the Fourth Proportional to 12,885,512.68, 17,782,042.98 and 7,084,887.40

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Solution

The fourth proportional to 12,885,512.68, 17,782,042.98 and 7,084,887.40 is: 9,777,164.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,885,512.68 : 17,782,042.98 = 7,084,887.40 : x
  2. Step 2: Convert to fraction form
    12,885,512.68/17,782,042.98 = 7,084,887.40/x
  3. Step 3: Cross multiply
    12,885,512.68x = 17,782,042.98 × 7,084,887.40
  4. Step 4: Simplify right side
    12,885,512.68x = 125,983,772,255,260.47
  5. Step 5: Solve for x
    x = 125,983,772,255,260.47/12,885,512.68
  6. Step 6: Final answer
    x = 9,777,164.12

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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.