Home / 15,009,699.14-20,713,402.52-8,134,181.21

Finding the Fourth Proportional to 15,009,699.14, 20,713,402.52 and 8,134,181.21

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Solution

The fourth proportional to 15,009,699.14, 20,713,402.52 and 8,134,181.21 is: 11,225,179.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,009,699.14 : 20,713,402.52 = 8,134,181.21 : x
  2. Step 2: Convert to fraction form
    15,009,699.14/20,713,402.52 = 8,134,181.21/x
  3. Step 3: Cross multiply
    15,009,699.14x = 20,713,402.52 × 8,134,181.21
  4. Step 4: Simplify right side
    15,009,699.14x = 168,486,569,490,119.09
  5. Step 5: Solve for x
    x = 168,486,569,490,119.09/15,009,699.14
  6. Step 6: Final answer
    x = 11,225,179.66

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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.