Home / 86,660,645.74-119,521,958.52-76,184,262.16

Finding the Fourth Proportional to 86,660,645.74, 119,521,958.52 and 76,184,262.16

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Solution

The fourth proportional to 86,660,645.74, 119,521,958.52 and 76,184,262.16 is: 105,072,979.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,660,645.74 : 119,521,958.52 = 76,184,262.16 : x
  2. Step 2: Convert to fraction form
    86,660,645.74/119,521,958.52 = 76,184,262.16/x
  3. Step 3: Cross multiply
    86,660,645.74x = 119,521,958.52 × 76,184,262.16
  4. Step 4: Simplify right side
    86,660,645.74x = 9,105,692,221,764,324
  5. Step 5: Solve for x
    x = 9,105,692,221,764,324/86,660,645.74
  6. Step 6: Final answer
    x = 105,072,979.14

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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.