Home / 40,188,087.62-55,490,800.07-30,880,987.14

Finding the Fourth Proportional to 40,188,087.62, 55,490,800.07 and 30,880,987.14

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Solution

The fourth proportional to 40,188,087.62, 55,490,800.07 and 30,880,987.14 is: 42,639,766.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,188,087.62 : 55,490,800.07 = 30,880,987.14 : x
  2. Step 2: Convert to fraction form
    40,188,087.62/55,490,800.07 = 30,880,987.14/x
  3. Step 3: Cross multiply
    40,188,087.62x = 55,490,800.07 × 30,880,987.14
  4. Step 4: Simplify right side
    40,188,087.62x = 1,713,610,683,349,981.25
  5. Step 5: Solve for x
    x = 1,713,610,683,349,981.25/40,188,087.62
  6. Step 6: Final answer
    x = 42,639,766.78

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1.5x scale

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.