Home / 66,305,150.69-90,838,497.64-63,819,983.31

Finding the Fourth Proportional to 66,305,150.69, 90,838,497.64 and 63,819,983.31

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Solution

The fourth proportional to 66,305,150.69, 90,838,497.64 and 63,819,983.31 is: 87,433,801.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,305,150.69 : 90,838,497.64 = 63,819,983.31 : x
  2. Step 2: Convert to fraction form
    66,305,150.69/90,838,497.64 = 63,819,983.31/x
  3. Step 3: Cross multiply
    66,305,150.69x = 90,838,497.64 × 63,819,983.31
  4. Step 4: Simplify right side
    66,305,150.69x = 5,797,311,403,130,725
  5. Step 5: Solve for x
    x = 5,797,311,403,130,725/66,305,150.69
  6. Step 6: Final answer
    x = 87,433,801.79

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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.