Home / 135,566,489.12-187,083,007.44-73,686,973.28

Finding the Fourth Proportional to 135,566,489.12, 187,083,007.44 and 73,686,973.28

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Solution

The fourth proportional to 135,566,489.12, 187,083,007.44 and 73,686,973.28 is: 101,688,703.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,566,489.12 : 187,083,007.44 = 73,686,973.28 : x
  2. Step 2: Convert to fraction form
    135,566,489.12/187,083,007.44 = 73,686,973.28/x
  3. Step 3: Cross multiply
    135,566,489.12x = 187,083,007.44 × 73,686,973.28
  4. Step 4: Simplify right side
    135,566,489.12x = 13,785,580,570,373,322
  5. Step 5: Solve for x
    x = 13,785,580,570,373,322/135,566,489.12
  6. Step 6: Final answer
    x = 101,688,703.90

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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.