Home / 12,886,422.60-19,313,045.10-9,879,702.60

Finding the Fourth Proportional to 12,886,422.60, 19,313,045.10 and 9,879,702.60

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Solution

The fourth proportional to 12,886,422.60, 19,313,045.10 and 9,879,702.60 is: 14,806,835.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,886,422.60 : 19,313,045.10 = 9,879,702.60 : x
  2. Step 2: Convert to fraction form
    12,886,422.60/19,313,045.10 = 9,879,702.60/x
  3. Step 3: Cross multiply
    12,886,422.60x = 19,313,045.10 × 9,879,702.60
  4. Step 4: Simplify right side
    12,886,422.60x = 190,807,141,888,387.28
  5. Step 5: Solve for x
    x = 190,807,141,888,387.28/12,886,422.60
  6. Step 6: Final answer
    x = 14,806,835.68

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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.