Home / 68,852,728.08-103,210,086.20-31,990,515.03

Finding the Fourth Proportional to 68,852,728.08, 103,210,086.20 and 31,990,515.03

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Solution

The fourth proportional to 68,852,728.08, 103,210,086.20 and 31,990,515.03 is: 47,953,710.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,852,728.08 : 103,210,086.20 = 31,990,515.03 : x
  2. Step 2: Convert to fraction form
    68,852,728.08/103,210,086.20 = 31,990,515.03/x
  3. Step 3: Cross multiply
    68,852,728.08x = 103,210,086.20 × 31,990,515.03
  4. Step 4: Simplify right side
    68,852,728.08x = 3,301,743,813,668,743
  5. Step 5: Solve for x
    x = 3,301,743,813,668,743/68,852,728.08
  6. Step 6: Final answer
    x = 47,953,710.85

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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.