Home / 12,878,105.40-19,319,490.90-6,472,236.60

Finding the Fourth Proportional to 12,878,105.40, 19,319,490.90 and 6,472,236.60

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Solution

The fourth proportional to 12,878,105.40, 19,319,490.90 and 6,472,236.60 is: 9,709,527.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,878,105.40 : 19,319,490.90 = 6,472,236.60 : x
  2. Step 2: Convert to fraction form
    12,878,105.40/19,319,490.90 = 6,472,236.60/x
  3. Step 3: Cross multiply
    12,878,105.40x = 19,319,490.90 × 6,472,236.60
  4. Step 4: Simplify right side
    12,878,105.40x = 125,040,316,096,346.92
  5. Step 5: Solve for x
    x = 125,040,316,096,346.92/12,878,105.40
  6. Step 6: Final answer
    x = 9,709,527.31

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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.