Home / 15,009,701.43-20,713,405.70-8,134,183.49

Finding the Fourth Proportional to 15,009,701.43, 20,713,405.70 and 8,134,183.49

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Solution

The fourth proportional to 15,009,701.43, 20,713,405.70 and 8,134,183.49 is: 11,225,182.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,009,701.43 : 20,713,405.70 = 8,134,183.49 : x
  2. Step 2: Convert to fraction form
    15,009,701.43/20,713,405.70 = 8,134,183.49/x
  3. Step 3: Cross multiply
    15,009,701.43x = 20,713,405.70 × 8,134,183.49
  4. Step 4: Simplify right side
    15,009,701.43x = 168,486,642,666,611.91
  5. Step 5: Solve for x
    x = 168,486,642,666,611.91/15,009,701.43
  6. Step 6: Final answer
    x = 11,225,182.82

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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.