Home / 8,713,076.70-13,069,615.05-5,120,564.70

Finding the Fourth Proportional to 8,713,076.70, 13,069,615.05 and 5,120,564.70

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Solution

The fourth proportional to 8,713,076.70, 13,069,615.05 and 5,120,564.70 is: 7,680,847.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,713,076.70 : 13,069,615.05 = 5,120,564.70 : x
  2. Step 2: Convert to fraction form
    8,713,076.70/13,069,615.05 = 5,120,564.70/x
  3. Step 3: Cross multiply
    8,713,076.70x = 13,069,615.05 × 5,120,564.70
  4. Step 4: Simplify right side
    8,713,076.70x = 66,923,809,467,618.74
  5. Step 5: Solve for x
    x = 66,923,809,467,618.74/8,713,076.70
  6. Step 6: Final answer
    x = 7,680,847.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.