Home / 68,990,928.30-103,486,392.45-65,631,696.30

Finding the Fourth Proportional to 68,990,928.30, 103,486,392.45 and 65,631,696.30

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Solution

The fourth proportional to 68,990,928.30, 103,486,392.45 and 65,631,696.30 is: 98,447,544.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,990,928.30 : 103,486,392.45 = 65,631,696.30 : x
  2. Step 2: Convert to fraction form
    68,990,928.30/103,486,392.45 = 65,631,696.30/x
  3. Step 3: Cross multiply
    68,990,928.30x = 103,486,392.45 × 65,631,696.30
  4. Step 4: Simplify right side
    68,990,928.30x = 6,791,987,480,461,013
  5. Step 5: Solve for x
    x = 6,791,987,480,461,013/68,990,928.30
  6. Step 6: Final answer
    x = 98,447,544.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.