Home / 30,907,756.62-42,653,903.68-16,969,699.21

Finding the Fourth Proportional to 30,907,756.62, 42,653,903.68 and 16,969,699.21

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Solution

The fourth proportional to 30,907,756.62, 42,653,903.68 and 16,969,699.21 is: 23,418,843.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,907,756.62 : 42,653,903.68 = 16,969,699.21 : x
  2. Step 2: Convert to fraction form
    30,907,756.62/42,653,903.68 = 16,969,699.21/x
  3. Step 3: Cross multiply
    30,907,756.62x = 42,653,903.68 × 16,969,699.21
  4. Step 4: Simplify right side
    30,907,756.62x = 723,823,915,528,746.75
  5. Step 5: Solve for x
    x = 723,823,915,528,746.75/30,907,756.62
  6. Step 6: Final answer
    x = 23,418,843.51

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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.