Home / 84,185,611.01-115,332,357.13-81,038,140.43

Finding the Fourth Proportional to 84,185,611.01, 115,332,357.13 and 81,038,140.43

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Solution

The fourth proportional to 84,185,611.01, 115,332,357.13 and 81,038,140.43 is: 111,020,394.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,185,611.01 : 115,332,357.13 = 81,038,140.43 : x
  2. Step 2: Convert to fraction form
    84,185,611.01/115,332,357.13 = 81,038,140.43/x
  3. Step 3: Cross multiply
    84,185,611.01x = 115,332,357.13 × 81,038,140.43
  4. Step 4: Simplify right side
    84,185,611.01x = 9,346,319,753,223,852
  5. Step 5: Solve for x
    x = 9,346,319,753,223,852/84,185,611.01
  6. Step 6: Final answer
    x = 111,020,394.59

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.