Home / 30,611,076.87-42,243,329.21-16,672,486.71

Finding the Fourth Proportional to 30,611,076.87, 42,243,329.21 and 16,672,486.71

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Solution

The fourth proportional to 30,611,076.87, 42,243,329.21 and 16,672,486.71 is: 23,008,055.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,611,076.87 : 42,243,329.21 = 16,672,486.71 : x
  2. Step 2: Convert to fraction form
    30,611,076.87/42,243,329.21 = 16,672,486.71/x
  3. Step 3: Cross multiply
    30,611,076.87x = 42,243,329.21 × 16,672,486.71
  4. Step 4: Simplify right side
    30,611,076.87x = 704,301,344,756,517.38
  5. Step 5: Solve for x
    x = 704,301,344,756,517.38/30,611,076.87
  6. Step 6: Final answer
    x = 23,008,055.15

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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.