Home / 90,669,578.76-125,126,947.44-51,510,643.92

Finding the Fourth Proportional to 90,669,578.76, 125,126,947.44 and 51,510,643.92

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Solution

The fourth proportional to 90,669,578.76, 125,126,947.44 and 51,510,643.92 is: 71,086,352.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,669,578.76 : 125,126,947.44 = 51,510,643.92 : x
  2. Step 2: Convert to fraction form
    90,669,578.76/125,126,947.44 = 51,510,643.92/x
  3. Step 3: Cross multiply
    90,669,578.76x = 125,126,947.44 × 51,510,643.92
  4. Step 4: Simplify right side
    90,669,578.76x = 6,445,369,634,378,396
  5. Step 5: Solve for x
    x = 6,445,369,634,378,396/90,669,578.76
  6. Step 6: Final answer
    x = 71,086,352.47

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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.