Home / 77,621,352.25-107,115,588.39-42,813,295.15

Finding the Fourth Proportional to 77,621,352.25, 107,115,588.39 and 42,813,295.15

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Solution

The fourth proportional to 77,621,352.25, 107,115,588.39 and 42,813,295.15 is: 59,081,311.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,621,352.25 : 107,115,588.39 = 42,813,295.15 : x
  2. Step 2: Convert to fraction form
    77,621,352.25/107,115,588.39 = 42,813,295.15/x
  3. Step 3: Cross multiply
    77,621,352.25x = 107,115,588.39 × 42,813,295.15
  4. Step 4: Simplify right side
    77,621,352.25x = 4,585,971,300,906,983
  5. Step 5: Solve for x
    x = 4,585,971,300,906,983/77,621,352.25
  6. Step 6: Final answer
    x = 59,081,311.62

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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.