Home / 28,448,004.80-42,672,007.20-7,172,868.80

Finding the Fourth Proportional to 28,448,004.80, 42,672,007.20 and 7,172,868.80

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Solution

The fourth proportional to 28,448,004.80, 42,672,007.20 and 7,172,868.80 is: 10,759,303.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,448,004.80 : 42,672,007.20 = 7,172,868.80 : x
  2. Step 2: Convert to fraction form
    28,448,004.80/42,672,007.20 = 7,172,868.80/x
  3. Step 3: Cross multiply
    28,448,004.80x = 42,672,007.20 × 7,172,868.80
  4. Step 4: Simplify right side
    28,448,004.80x = 306,080,709,078,255.38
  5. Step 5: Solve for x
    x = 306,080,709,078,255.38/28,448,004.80
  6. Step 6: Final answer
    x = 10,759,303.20

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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.