Home / 151,711,902-209,362,975.88-82,097,275.28

Finding the Fourth Proportional to 151,711,902, 209,362,975.88 and 82,097,275.28

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Solution

The fourth proportional to 151,711,902, 209,362,975.88 and 82,097,275.28 is: 113,294,538.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,711,902 : 209,362,975.88 = 82,097,275.28 : x
  2. Step 2: Convert to fraction form
    151,711,902/209,362,975.88 = 82,097,275.28/x
  3. Step 3: Cross multiply
    151,711,902x = 209,362,975.88 × 82,097,275.28
  4. Step 4: Simplify right side
    151,711,902x = 17,188,129,864,260,360
  5. Step 5: Solve for x
    x = 17,188,129,864,260,360/151,711,902
  6. Step 6: Final answer
    x = 113,294,538.12

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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.