Home / 21,294,579.60-31,954,991.40-8,513,751.60

Finding the Fourth Proportional to 21,294,579.60, 31,954,991.40 and 8,513,751.60

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Solution

The fourth proportional to 21,294,579.60, 31,954,991.40 and 8,513,751.60 is: 12,775,873.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,294,579.60 : 31,954,991.40 = 8,513,751.60 : x
  2. Step 2: Convert to fraction form
    21,294,579.60/31,954,991.40 = 8,513,751.60/x
  3. Step 3: Cross multiply
    21,294,579.60x = 31,954,991.40 × 8,513,751.60
  4. Step 4: Simplify right side
    21,294,579.60x = 272,056,859,159,736.22
  5. Step 5: Solve for x
    x = 272,056,859,159,736.22/21,294,579.60
  6. Step 6: Final answer
    x = 12,775,873.69

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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.