Home / 153,405,062.85-211,697,589.24-83,790,425.28

Finding the Fourth Proportional to 153,405,062.85, 211,697,589.24 and 83,790,425.28

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Solution

The fourth proportional to 153,405,062.85, 211,697,589.24 and 83,790,425.28 is: 115,630,023.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,405,062.85 : 211,697,589.24 = 83,790,425.28 : x
  2. Step 2: Convert to fraction form
    153,405,062.85/211,697,589.24 = 83,790,425.28/x
  3. Step 3: Cross multiply
    153,405,062.85x = 211,697,589.24 × 83,790,425.28
  4. Step 4: Simplify right side
    153,405,062.85x = 17,738,231,033,170,354
  5. Step 5: Solve for x
    x = 17,738,231,033,170,354/153,405,062.85
  6. Step 6: Final answer
    x = 115,630,023.57

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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.