Home / 77,767,167.80-107,319,588.92-42,959,128.52

Finding the Fourth Proportional to 77,767,167.80, 107,319,588.92 and 42,959,128.52

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Solution

The fourth proportional to 77,767,167.80, 107,319,588.92 and 42,959,128.52 is: 59,284,093.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,767,167.80 : 107,319,588.92 = 42,959,128.52 : x
  2. Step 2: Convert to fraction form
    77,767,167.80/107,319,588.92 = 42,959,128.52/x
  3. Step 3: Cross multiply
    77,767,167.80x = 107,319,588.92 × 42,959,128.52
  4. Step 4: Simplify right side
    77,767,167.80x = 4,610,356,012,376,455
  5. Step 5: Solve for x
    x = 4,610,356,012,376,455/77,767,167.80
  6. Step 6: Final answer
    x = 59,284,093.06

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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.