Home / 12,120,913.31-16,727,216.16-6,614,643.54

Finding the Fourth Proportional to 12,120,913.31, 16,727,216.16 and 6,614,643.54

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Solution

The fourth proportional to 12,120,913.31, 16,727,216.16 and 6,614,643.54 is: 9,128,402.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,120,913.31 : 16,727,216.16 = 6,614,643.54 : x
  2. Step 2: Convert to fraction form
    12,120,913.31/16,727,216.16 = 6,614,643.54/x
  3. Step 3: Cross multiply
    12,120,913.31x = 16,727,216.16 × 6,614,643.54
  4. Step 4: Simplify right side
    12,120,913.31x = 110,644,572,402,459.58
  5. Step 5: Solve for x
    x = 110,644,572,402,459.58/12,120,913.31
  6. Step 6: Final answer
    x = 9,128,402.26

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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.