Home / 28,448,001.80-42,672,002.70-7,172,865.80

Finding the Fourth Proportional to 28,448,001.80, 42,672,002.70 and 7,172,865.80

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Solution

The fourth proportional to 28,448,001.80, 42,672,002.70 and 7,172,865.80 is: 10,759,298.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,448,001.80 : 42,672,002.70 = 7,172,865.80 : x
  2. Step 2: Convert to fraction form
    28,448,001.80/42,672,002.70 = 7,172,865.80/x
  3. Step 3: Cross multiply
    28,448,001.80x = 42,672,002.70 × 7,172,865.80
  4. Step 4: Simplify right side
    28,448,001.80x = 306,080,548,784,337.69
  5. Step 5: Solve for x
    x = 306,080,548,784,337.69/28,448,001.80
  6. Step 6: Final answer
    x = 10,759,298.70

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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.