Home / 305,578,247,171.59-421,685,703,605.83-166,526,576,152.87

Finding the Fourth Proportional to 305,578,247,171.59, 421,685,703,605.83 and 166,526,576,152.87

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Solution

The fourth proportional to 305,578,247,171.59, 421,685,703,605.83 and 166,526,576,152.87 is: 229,799,984,403.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,578,247,171.59 : 421,685,703,605.83 = 166,526,576,152.87 : x
  2. Step 2: Convert to fraction form
    305,578,247,171.59/421,685,703,605.83 = 166,526,576,152.87/x
  3. Step 3: Cross multiply
    305,578,247,171.59x = 421,685,703,605.83 × 166,526,576,152.87
  4. Step 4: Simplify right side
    305,578,247,171.59x = 70,221,876,434,092,817,383,424
  5. Step 5: Solve for x
    x = 70,221,876,434,092,817,383,424/305,578,247,171.59
  6. Step 6: Final answer
    x = 229,799,984,403.54

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1.5x scale

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.