Home / 15,719,579.19-21,693,014.40-8,750,105.28

Finding the Fourth Proportional to 15,719,579.19, 21,693,014.40 and 8,750,105.28

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Solution

The fourth proportional to 15,719,579.19, 21,693,014.40 and 8,750,105.28 is: 12,075,142.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,719,579.19 : 21,693,014.40 = 8,750,105.28 : x
  2. Step 2: Convert to fraction form
    15,719,579.19/21,693,014.40 = 8,750,105.28/x
  3. Step 3: Cross multiply
    15,719,579.19x = 21,693,014.40 × 8,750,105.28
  4. Step 4: Simplify right side
    15,719,579.19x = 189,816,159,840,556
  5. Step 5: Solve for x
    x = 189,816,159,840,556/15,719,579.19
  6. Step 6: Final answer
    x = 12,075,142.57

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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.