Home / 12,320,872.74-16,995,978.90-7,163,664.30

Finding the Fourth Proportional to 12,320,872.74, 16,995,978.90 and 7,163,664.30

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Solution

The fourth proportional to 12,320,872.74, 16,995,978.90 and 7,163,664.30 is: 9,881,888.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,320,872.74 : 16,995,978.90 = 7,163,664.30 : x
  2. Step 2: Convert to fraction form
    12,320,872.74/16,995,978.90 = 7,163,664.30/x
  3. Step 3: Cross multiply
    12,320,872.74x = 16,995,978.90 × 7,163,664.30
  4. Step 4: Simplify right side
    12,320,872.74x = 121,753,487,289,483.25
  5. Step 5: Solve for x
    x = 121,753,487,289,483.25/12,320,872.74
  6. Step 6: Final answer
    x = 9,881,888.23

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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.