Home / 12,878,578.40-19,320,200.40-6,472,709.60

Finding the Fourth Proportional to 12,878,578.40, 19,320,200.40 and 6,472,709.60

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Solution

The fourth proportional to 12,878,578.40, 19,320,200.40 and 6,472,709.60 is: 9,710,236.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,878,578.40 : 19,320,200.40 = 6,472,709.60 : x
  2. Step 2: Convert to fraction form
    12,878,578.40/19,320,200.40 = 6,472,709.60/x
  3. Step 3: Cross multiply
    12,878,578.40x = 19,320,200.40 × 6,472,709.60
  4. Step 4: Simplify right side
    12,878,578.40x = 125,054,046,603,003.83
  5. Step 5: Solve for x
    x = 125,054,046,603,003.83/12,878,578.40
  6. Step 6: Final answer
    x = 9,710,236.85

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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.