Home / 131,172,816.30-196,759,224.45-121,319,069.10

Finding the Fourth Proportional to 131,172,816.30, 196,759,224.45 and 121,319,069.10

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Solution

The fourth proportional to 131,172,816.30, 196,759,224.45 and 121,319,069.10 is: 181,978,603.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,172,816.30 : 196,759,224.45 = 121,319,069.10 : x
  2. Step 2: Convert to fraction form
    131,172,816.30/196,759,224.45 = 121,319,069.10/x
  3. Step 3: Cross multiply
    131,172,816.30x = 196,759,224.45 × 121,319,069.10
  4. Step 4: Simplify right side
    131,172,816.30x = 23,870,645,947,111,956
  5. Step 5: Solve for x
    x = 23,870,645,947,111,956/131,172,816.30
  6. Step 6: Final answer
    x = 181,978,603.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.