Home / 15,719,621.76-21,693,072.60-8,750,148.12

Finding the Fourth Proportional to 15,719,621.76, 21,693,072.60 and 8,750,148.12

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Solution

The fourth proportional to 15,719,621.76, 21,693,072.60 and 8,750,148.12 is: 12,075,201.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,719,621.76 : 21,693,072.60 = 8,750,148.12 : x
  2. Step 2: Convert to fraction form
    15,719,621.76/21,693,072.60 = 8,750,148.12/x
  3. Step 3: Cross multiply
    15,719,621.76x = 21,693,072.60 × 8,750,148.12
  4. Step 4: Simplify right side
    15,719,621.76x = 189,817,598,427,913.50
  5. Step 5: Solve for x
    x = 189,817,598,427,913.50/15,719,621.76
  6. Step 6: Final answer
    x = 12,075,201.38

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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.