Home / 15,009,699.18-20,713,402.59-8,134,181.24

Finding the Fourth Proportional to 15,009,699.18, 20,713,402.59 and 8,134,181.24

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Solution

The fourth proportional to 15,009,699.18, 20,713,402.59 and 8,134,181.24 is: 11,225,179.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,009,699.18 : 20,713,402.59 = 8,134,181.24 : x
  2. Step 2: Convert to fraction form
    15,009,699.18/20,713,402.59 = 8,134,181.24/x
  3. Step 3: Cross multiply
    15,009,699.18x = 20,713,402.59 × 8,134,181.24
  4. Step 4: Simplify right side
    15,009,699.18x = 168,486,570,815,928.91
  5. Step 5: Solve for x
    x = 168,486,570,815,928.91/15,009,699.18
  6. Step 6: Final answer
    x = 11,225,179.72

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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.