Home / 159,482,912.50-220,086,507.54-86,144,054.50

Finding the Fourth Proportional to 159,482,912.50, 220,086,507.54 and 86,144,054.50

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Solution

The fourth proportional to 159,482,912.50, 220,086,507.54 and 86,144,054.50 is: 118,878,842.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,482,912.50 : 220,086,507.54 = 86,144,054.50 : x
  2. Step 2: Convert to fraction form
    159,482,912.50/220,086,507.54 = 86,144,054.50/x
  3. Step 3: Cross multiply
    159,482,912.50x = 220,086,507.54 × 86,144,054.50
  4. Step 4: Simplify right side
    159,482,912.50x = 18,959,144,100,240,420
  5. Step 5: Solve for x
    x = 18,959,144,100,240,420/159,482,912.50
  6. Step 6: Final answer
    x = 118,878,842.90

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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.