Home / 12,605,784.52-18,911,334-4,085,456.68

Finding the Fourth Proportional to 12,605,784.52, 18,911,334 and 4,085,456.68

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Solution

The fourth proportional to 12,605,784.52, 18,911,334 and 4,085,456.68 is: 6,129,046.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,605,784.52 : 18,911,334 = 4,085,456.68 : x
  2. Step 2: Convert to fraction form
    12,605,784.52/18,911,334 = 4,085,456.68/x
  3. Step 3: Cross multiply
    12,605,784.52x = 18,911,334 × 4,085,456.68
  4. Step 4: Simplify right side
    12,605,784.52x = 77,261,435,818,011.12
  5. Step 5: Solve for x
    x = 77,261,435,818,011.12/12,605,784.52
  6. Step 6: Final answer
    x = 6,129,046.21

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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.