Home / 30,619,292.80-42,255,164.48-16,868,163.20

Finding the Fourth Proportional to 30,619,292.80, 42,255,164.48 and 16,868,163.20

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Solution

The fourth proportional to 30,619,292.80, 42,255,164.48 and 16,868,163.20 is: 23,278,362.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,619,292.80 : 42,255,164.48 = 16,868,163.20 : x
  2. Step 2: Convert to fraction form
    30,619,292.80/42,255,164.48 = 16,868,163.20/x
  3. Step 3: Cross multiply
    30,619,292.80x = 42,255,164.48 × 16,868,163.20
  4. Step 4: Simplify right side
    30,619,292.80x = 712,767,010,491,483
  5. Step 5: Solve for x
    x = 712,767,010,491,483/30,619,292.80
  6. Step 6: Final answer
    x = 23,278,362.93

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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.