Home / 77,621,351.25-107,115,587.01-42,813,294.15

Finding the Fourth Proportional to 77,621,351.25, 107,115,587.01 and 42,813,294.15

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Solution

The fourth proportional to 77,621,351.25, 107,115,587.01 and 42,813,294.15 is: 59,081,310.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,621,351.25 : 107,115,587.01 = 42,813,294.15 : x
  2. Step 2: Convert to fraction form
    77,621,351.25/107,115,587.01 = 42,813,294.15/x
  3. Step 3: Cross multiply
    77,621,351.25x = 107,115,587.01 × 42,813,294.15
  4. Step 4: Simplify right side
    77,621,351.25x = 4,585,971,134,709,049
  5. Step 5: Solve for x
    x = 4,585,971,134,709,049/77,621,351.25
  6. Step 6: Final answer
    x = 59,081,310.24

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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.