Home / 140,703,880.95-194,171,374.13-77,984,028.20

Finding the Fourth Proportional to 140,703,880.95, 194,171,374.13 and 77,984,028.20

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Solution

The fourth proportional to 140,703,880.95, 194,171,374.13 and 77,984,028.20 is: 107,617,969.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,703,880.95 : 194,171,374.13 = 77,984,028.20 : x
  2. Step 2: Convert to fraction form
    140,703,880.95/194,171,374.13 = 77,984,028.20/x
  3. Step 3: Cross multiply
    140,703,880.95x = 194,171,374.13 × 77,984,028.20
  4. Step 4: Simplify right side
    140,703,880.95x = 15,142,265,915,882,178
  5. Step 5: Solve for x
    x = 15,142,265,915,882,178/140,703,880.95
  6. Step 6: Final answer
    x = 107,617,969.13

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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.