Home / 20,788,011-31,181,491.62-5,641,548.84

Finding the Fourth Proportional to 20,788,011, 31,181,491.62 and 5,641,548.84

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Solution

The fourth proportional to 20,788,011, 31,181,491.62 and 5,641,548.84 is: 8,462,180.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,788,011 : 31,181,491.62 = 5,641,548.84 : x
  2. Step 2: Convert to fraction form
    20,788,011/31,181,491.62 = 5,641,548.84/x
  3. Step 3: Cross multiply
    20,788,011x = 31,181,491.62 × 5,641,548.84
  4. Step 4: Simplify right side
    20,788,011x = 175,911,907,878,280.72
  5. Step 5: Solve for x
    x = 175,911,907,878,280.72/20,788,011
  6. Step 6: Final answer
    x = 8,462,180.82

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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.