Home / 12,780,832.20-19,171,417.73-4,261,171.47

Finding the Fourth Proportional to 12,780,832.20, 19,171,417.73 and 4,261,171.47

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Solution

The fourth proportional to 12,780,832.20, 19,171,417.73 and 4,261,171.47 is: 6,391,813.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,780,832.20 : 19,171,417.73 = 4,261,171.47 : x
  2. Step 2: Convert to fraction form
    12,780,832.20/19,171,417.73 = 4,261,171.47/x
  3. Step 3: Cross multiply
    12,780,832.20x = 19,171,417.73 × 4,261,171.47
  4. Step 4: Simplify right side
    12,780,832.20x = 81,692,698,249,222.31
  5. Step 5: Solve for x
    x = 81,692,698,249,222.31/12,780,832.20
  6. Step 6: Final answer
    x = 6,391,813.69

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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.