Home / 720,841,362,559.85-994,761,816,526.12-391,244,468,672.60

Finding the Fourth Proportional to 720,841,362,559.85, 994,761,816,526.12 and 391,244,468,672.60

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Solution

The fourth proportional to 720,841,362,559.85, 994,761,816,526.12 and 391,244,468,672.60 is: 539,917,766,345.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,841,362,559.85 : 994,761,816,526.12 = 391,244,468,672.60 : x
  2. Step 2: Convert to fraction form
    720,841,362,559.85/994,761,816,526.12 = 391,244,468,672.60/x
  3. Step 3: Cross multiply
    720,841,362,559.85x = 994,761,816,526.12 × 391,244,468,672.60
  4. Step 4: Simplify right side
    720,841,362,559.85x = 389,195,058,362,552,227,463,168
  5. Step 5: Solve for x
    x = 389,195,058,362,552,227,463,168/720,841,362,559.85
  6. Step 6: Final answer
    x = 539,917,766,345.21

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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.