Home / 137,301,590.85-189,422,795.24-77,749,216.35

Finding the Fourth Proportional to 137,301,590.85, 189,422,795.24 and 77,749,216.35

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Solution

The fourth proportional to 137,301,590.85, 189,422,795.24 and 77,749,216.35 is: 107,263,679.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,301,590.85 : 189,422,795.24 = 77,749,216.35 : x
  2. Step 2: Convert to fraction form
    137,301,590.85/189,422,795.24 = 77,749,216.35/x
  3. Step 3: Cross multiply
    137,301,590.85x = 189,422,795.24 × 77,749,216.35
  4. Step 4: Simplify right side
    137,301,590.85x = 14,727,473,888,347,764
  5. Step 5: Solve for x
    x = 14,727,473,888,347,764/137,301,590.85
  6. Step 6: Final answer
    x = 107,263,679.88

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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.