Home / 15,196,528.34-20,970,999.71-8,321,010.40

Finding the Fourth Proportional to 15,196,528.34, 20,970,999.71 and 8,321,010.40

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Solution

The fourth proportional to 15,196,528.34, 20,970,999.71 and 8,321,010.40 is: 11,482,879.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,196,528.34 : 20,970,999.71 = 8,321,010.40 : x
  2. Step 2: Convert to fraction form
    15,196,528.34/20,970,999.71 = 8,321,010.40/x
  3. Step 3: Cross multiply
    15,196,528.34x = 20,970,999.71 × 8,321,010.40
  4. Step 4: Simplify right side
    15,196,528.34x = 174,499,906,685,307
  5. Step 5: Solve for x
    x = 174,499,906,685,307/15,196,528.34
  6. Step 6: Final answer
    x = 11,482,879.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.