Home / 30,329,381.40-45,494,072.10-18,850,255.80

Finding the Fourth Proportional to 30,329,381.40, 45,494,072.10 and 18,850,255.80

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Solution

The fourth proportional to 30,329,381.40, 45,494,072.10 and 18,850,255.80 is: 28,275,383.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,329,381.40 : 45,494,072.10 = 18,850,255.80 : x
  2. Step 2: Convert to fraction form
    30,329,381.40/45,494,072.10 = 18,850,255.80/x
  3. Step 3: Cross multiply
    30,329,381.40x = 45,494,072.10 × 18,850,255.80
  4. Step 4: Simplify right side
    30,329,381.40x = 857,574,896,468,643.25
  5. Step 5: Solve for x
    x = 857,574,896,468,643.25/30,329,381.40
  6. Step 6: Final answer
    x = 28,275,383.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.