Home / 77,797,085.16-107,359,712.10-42,988,806.12

Finding the Fourth Proportional to 77,797,085.16, 107,359,712.10 and 42,988,806.12

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Solution

The fourth proportional to 77,797,085.16, 107,359,712.10 and 42,988,806.12 is: 59,324,405.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,797,085.16 : 107,359,712.10 = 42,988,806.12 : x
  2. Step 2: Convert to fraction form
    77,797,085.16/107,359,712.10 = 42,988,806.12/x
  3. Step 3: Cross multiply
    77,797,085.16x = 107,359,712.10 × 42,988,806.12
  4. Step 4: Simplify right side
    77,797,085.16x = 4,615,265,848,565,918
  5. Step 5: Solve for x
    x = 4,615,265,848,565,918/77,797,085.16
  6. Step 6: Final answer
    x = 59,324,405.78

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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.