Home / 30,645,609.21-42,291,229.68-16,895,065.41

Finding the Fourth Proportional to 30,645,609.21, 42,291,229.68 and 16,895,065.41

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Solution

The fourth proportional to 30,645,609.21, 42,291,229.68 and 16,895,065.41 is: 23,315,349.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,645,609.21 : 42,291,229.68 = 16,895,065.41 : x
  2. Step 2: Convert to fraction form
    30,645,609.21/42,291,229.68 = 16,895,065.41/x
  3. Step 3: Cross multiply
    30,645,609.21x = 42,291,229.68 × 16,895,065.41
  4. Step 4: Simplify right side
    30,645,609.21x = 714,513,091,712,933.38
  5. Step 5: Solve for x
    x = 714,513,091,712,933.38/30,645,609.21
  6. Step 6: Final answer
    x = 23,315,349.58

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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.