Home / 47,319,121.20-70,978,681.80-30,313,009.20

Finding the Fourth Proportional to 47,319,121.20, 70,978,681.80 and 30,313,009.20

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Solution

The fourth proportional to 47,319,121.20, 70,978,681.80 and 30,313,009.20 is: 45,469,513.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,319,121.20 : 70,978,681.80 = 30,313,009.20 : x
  2. Step 2: Convert to fraction form
    47,319,121.20/70,978,681.80 = 30,313,009.20/x
  3. Step 3: Cross multiply
    47,319,121.20x = 70,978,681.80 × 30,313,009.20
  4. Step 4: Simplify right side
    47,319,121.20x = 2,151,577,434,407,272.50
  5. Step 5: Solve for x
    x = 2,151,577,434,407,272.50/47,319,121.20
  6. Step 6: Final answer
    x = 45,469,513.80

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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.