Home / 261,333,067.23-392,058,657.14-86,455,690.34

Finding the Fourth Proportional to 261,333,067.23, 392,058,657.14 and 86,455,690.34

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Solution

The fourth proportional to 261,333,067.23, 392,058,657.14 and 86,455,690.34 is: 129,703,072.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,333,067.23 : 392,058,657.14 = 86,455,690.34 : x
  2. Step 2: Convert to fraction form
    261,333,067.23/392,058,657.14 = 86,455,690.34/x
  3. Step 3: Cross multiply
    261,333,067.23x = 392,058,657.14 × 86,455,690.34
  4. Step 4: Simplify right side
    261,333,067.23x = 33,895,701,854,419,496
  5. Step 5: Solve for x
    x = 33,895,701,854,419,496/261,333,067.23
  6. Step 6: Final answer
    x = 129,703,072.84

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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.