Home / 30,477,296.64-42,071,787.84-18,718,469.76

Finding the Fourth Proportional to 30,477,296.64, 42,071,787.84 and 18,718,469.76

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Solution

The fourth proportional to 30,477,296.64, 42,071,787.84 and 18,718,469.76 is: 25,839,545.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,477,296.64 : 42,071,787.84 = 18,718,469.76 : x
  2. Step 2: Convert to fraction form
    30,477,296.64/42,071,787.84 = 18,718,469.76/x
  3. Step 3: Cross multiply
    30,477,296.64x = 42,071,787.84 × 18,718,469.76
  4. Step 4: Simplify right side
    30,477,296.64x = 787,519,488,432,175.88
  5. Step 5: Solve for x
    x = 787,519,488,432,175.88/30,477,296.64
  6. Step 6: Final answer
    x = 25,839,545.34

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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.