Home / 84,017,360.80-115,965,530.64-54,721,695.52

Finding the Fourth Proportional to 84,017,360.80, 115,965,530.64 and 54,721,695.52

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Solution

The fourth proportional to 84,017,360.80, 115,965,530.64 and 54,721,695.52 is: 75,529,990.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,017,360.80 : 115,965,530.64 = 54,721,695.52 : x
  2. Step 2: Convert to fraction form
    84,017,360.80/115,965,530.64 = 54,721,695.52/x
  3. Step 3: Cross multiply
    84,017,360.80x = 115,965,530.64 × 54,721,695.52
  4. Step 4: Simplify right side
    84,017,360.80x = 6,345,830,458,497,311
  5. Step 5: Solve for x
    x = 6,345,830,458,497,311/84,017,360.80
  6. Step 6: Final answer
    x = 75,529,990.45

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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.