Home / 31,580,130.33-43,578,529.83-18,348,135.15

Finding the Fourth Proportional to 31,580,130.33, 43,578,529.83 and 18,348,135.15

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Solution

The fourth proportional to 31,580,130.33, 43,578,529.83 and 18,348,135.15 is: 25,319,235.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,580,130.33 : 43,578,529.83 = 18,348,135.15 : x
  2. Step 2: Convert to fraction form
    31,580,130.33/43,578,529.83 = 18,348,135.15/x
  3. Step 3: Cross multiply
    31,580,130.33x = 43,578,529.83 × 18,348,135.15
  4. Step 4: Simplify right side
    31,580,130.33x = 799,584,754,959,146.38
  5. Step 5: Solve for x
    x = 799,584,754,959,146.38/31,580,130.33
  6. Step 6: Final answer
    x = 25,319,235.44

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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.