Home / 12,509,332.64-18,765,398.66-3,987,692

Finding the Fourth Proportional to 12,509,332.64, 18,765,398.66 and 3,987,692

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Solution

The fourth proportional to 12,509,332.64, 18,765,398.66 and 3,987,692 is: 5,981,984.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,509,332.64 : 18,765,398.66 = 3,987,692 : x
  2. Step 2: Convert to fraction form
    12,509,332.64/18,765,398.66 = 3,987,692/x
  3. Step 3: Cross multiply
    12,509,332.64x = 18,765,398.66 × 3,987,692
  4. Step 4: Simplify right side
    12,509,332.64x = 74,830,630,113,292.72
  5. Step 5: Solve for x
    x = 74,830,630,113,292.72/12,509,332.64
  6. Step 6: Final answer
    x = 5,981,984.19

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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.