Home / 77,571,739.67-107,049,825.59-42,765,675.57

Finding the Fourth Proportional to 77,571,739.67, 107,049,825.59 and 42,765,675.57

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Solution

The fourth proportional to 77,571,739.67, 107,049,825.59 and 42,765,675.57 is: 59,017,087.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,571,739.67 : 107,049,825.59 = 42,765,675.57 : x
  2. Step 2: Convert to fraction form
    77,571,739.67/107,049,825.59 = 42,765,675.57/x
  3. Step 3: Cross multiply
    77,571,739.67x = 107,049,825.59 × 42,765,675.57
  4. Step 4: Simplify right side
    77,571,739.67x = 4,578,058,110,793,195
  5. Step 5: Solve for x
    x = 4,578,058,110,793,195/77,571,739.67
  6. Step 6: Final answer
    x = 59,017,087.03

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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.