Home / 305,473,012.42-421,553,848.89-166,245,443.14

Finding the Fourth Proportional to 305,473,012.42, 421,553,848.89 and 166,245,443.14

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Solution

The fourth proportional to 305,473,012.42, 421,553,848.89 and 166,245,443.14 is: 229,419,305.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,473,012.42 : 421,553,848.89 = 166,245,443.14 : x
  2. Step 2: Convert to fraction form
    305,473,012.42/421,553,848.89 = 166,245,443.14/x
  3. Step 3: Cross multiply
    305,473,012.42x = 421,553,848.89 × 166,245,443.14
  4. Step 4: Simplify right side
    305,473,012.42x = 70,081,406,416,090,640
  5. Step 5: Solve for x
    x = 70,081,406,416,090,640/305,473,012.42
  6. Step 6: Final answer
    x = 229,419,305.69

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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.