Home / 30,640,729.14-42,284,195.91-16,889,922.90

Finding the Fourth Proportional to 30,640,729.14, 42,284,195.91 and 16,889,922.90

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Solution

The fourth proportional to 30,640,729.14, 42,284,195.91 and 16,889,922.90 is: 23,308,087.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,640,729.14 : 42,284,195.91 = 16,889,922.90 : x
  2. Step 2: Convert to fraction form
    30,640,729.14/42,284,195.91 = 16,889,922.90/x
  3. Step 3: Cross multiply
    30,640,729.14x = 42,284,195.91 × 16,889,922.90
  4. Step 4: Simplify right side
    30,640,729.14x = 714,176,808,808,395.25
  5. Step 5: Solve for x
    x = 714,176,808,808,395.25/30,640,729.14
  6. Step 6: Final answer
    x = 23,308,087.92

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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.