Home / 18,862,354.48-28,264,653.69-12,691,479.33

Finding the Fourth Proportional to 18,862,354.48, 28,264,653.69 and 12,691,479.33

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Solution

The fourth proportional to 18,862,354.48, 28,264,653.69 and 12,691,479.33 is: 19,017,788.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,862,354.48 : 28,264,653.69 = 12,691,479.33 : x
  2. Step 2: Convert to fraction form
    18,862,354.48/28,264,653.69 = 12,691,479.33/x
  3. Step 3: Cross multiply
    18,862,354.48x = 28,264,653.69 × 12,691,479.33
  4. Step 4: Simplify right side
    18,862,354.48x = 358,720,268,076,243.25
  5. Step 5: Solve for x
    x = 358,720,268,076,243.25/18,862,354.48
  6. Step 6: Final answer
    x = 19,017,788.50

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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.