Home / 47,308,584.60-70,821,159.30-28,129,469.40

Finding the Fourth Proportional to 47,308,584.60, 70,821,159.30 and 28,129,469.40

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Solution

The fourth proportional to 47,308,584.60, 70,821,159.30 and 28,129,469.40 is: 42,109,939.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,308,584.60 : 70,821,159.30 = 28,129,469.40 : x
  2. Step 2: Convert to fraction form
    47,308,584.60/70,821,159.30 = 28,129,469.40/x
  3. Step 3: Cross multiply
    47,308,584.60x = 70,821,159.30 × 28,129,469.40
  4. Step 4: Simplify right side
    47,308,584.60x = 1,992,161,633,401,875.25
  5. Step 5: Solve for x
    x = 1,992,161,633,401,875.25/47,308,584.60
  6. Step 6: Final answer
    x = 42,109,939.46

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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.