Home / 12,878,540.60-19,339,929.30-9,118,412.60

Finding the Fourth Proportional to 12,878,540.60, 19,339,929.30 and 9,118,412.60

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Solution

The fourth proportional to 12,878,540.60, 19,339,929.30 and 9,118,412.60 is: 13,693,279.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,878,540.60 : 19,339,929.30 = 9,118,412.60 : x
  2. Step 2: Convert to fraction form
    12,878,540.60/19,339,929.30 = 9,118,412.60/x
  3. Step 3: Cross multiply
    12,878,540.60x = 19,339,929.30 × 9,118,412.60
  4. Step 4: Simplify right side
    12,878,540.60x = 176,349,455,012,229.19
  5. Step 5: Solve for x
    x = 176,349,455,012,229.19/12,878,540.60
  6. Step 6: Final answer
    x = 13,693,279.42

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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.