Home / 30,640,720.14-42,284,183.49-16,889,913.90

Finding the Fourth Proportional to 30,640,720.14, 42,284,183.49 and 16,889,913.90

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Solution

The fourth proportional to 30,640,720.14, 42,284,183.49 and 16,889,913.90 is: 23,308,075.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,640,720.14 : 42,284,183.49 = 16,889,913.90 : x
  2. Step 2: Convert to fraction form
    30,640,720.14/42,284,183.49 = 16,889,913.90/x
  3. Step 3: Cross multiply
    30,640,720.14x = 42,284,183.49 × 16,889,913.90
  4. Step 4: Simplify right side
    30,640,720.14x = 714,176,218,477,901.50
  5. Step 5: Solve for x
    x = 714,176,218,477,901.50/30,640,720.14
  6. Step 6: Final answer
    x = 23,308,075.50

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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.