Home / 151,242,815.21-208,721,501.72-84,261,713.84

Finding the Fourth Proportional to 151,242,815.21, 208,721,501.72 and 84,261,713.84

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Solution

The fourth proportional to 151,242,815.21, 208,721,501.72 and 84,261,713.84 is: 116,284,740.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,242,815.21 : 208,721,501.72 = 84,261,713.84 : x
  2. Step 2: Convert to fraction form
    151,242,815.21/208,721,501.72 = 84,261,713.84/x
  3. Step 3: Cross multiply
    151,242,815.21x = 208,721,501.72 × 84,261,713.84
  4. Step 4: Simplify right side
    151,242,815.21x = 17,587,231,448,720,790
  5. Step 5: Solve for x
    x = 17,587,231,448,720,790/151,242,815.21
  6. Step 6: Final answer
    x = 116,284,740.04

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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.