Home / 720,841,362,562.80-994,761,816,530.18-391,244,468,675.55

Finding the Fourth Proportional to 720,841,362,562.80, 994,761,816,530.18 and 391,244,468,675.55

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Solution

The fourth proportional to 720,841,362,562.80, 994,761,816,530.18 and 391,244,468,675.55 is: 539,917,766,349.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,841,362,562.80 : 994,761,816,530.18 = 391,244,468,675.55 : x
  2. Step 2: Convert to fraction form
    720,841,362,562.80/994,761,816,530.18 = 391,244,468,675.55/x
  3. Step 3: Cross multiply
    720,841,362,562.80x = 994,761,816,530.18 × 391,244,468,675.55
  4. Step 4: Simplify right side
    720,841,362,562.80x = 389,195,058,367,075,230,679,040
  5. Step 5: Solve for x
    x = 389,195,058,367,075,230,679,040/720,841,362,562.80
  6. Step 6: Final answer
    x = 539,917,766,349.28

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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.