Home / 81,668,481.60-112,710,447-61,006,055.52

Finding the Fourth Proportional to 81,668,481.60, 112,710,447 and 61,006,055.52

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Solution

The fourth proportional to 81,668,481.60, 112,710,447 and 61,006,055.52 is: 84,194,289.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,668,481.60 : 112,710,447 = 61,006,055.52 : x
  2. Step 2: Convert to fraction form
    81,668,481.60/112,710,447 = 61,006,055.52/x
  3. Step 3: Cross multiply
    81,668,481.60x = 112,710,447 × 61,006,055.52
  4. Step 4: Simplify right side
    81,668,481.60x = 6,876,019,787,366,018
  5. Step 5: Solve for x
    x = 6,876,019,787,366,018/81,668,481.60
  6. Step 6: Final answer
    x = 84,194,289.56

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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.