Home / 720,841,362,561.30-994,761,816,528.10-391,244,468,674.05

Finding the Fourth Proportional to 720,841,362,561.30, 994,761,816,528.10 and 391,244,468,674.05

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Solution

The fourth proportional to 720,841,362,561.30, 994,761,816,528.10 and 391,244,468,674.05 is: 539,917,766,347.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,841,362,561.30 : 994,761,816,528.10 = 391,244,468,674.05 : x
  2. Step 2: Convert to fraction form
    720,841,362,561.30/994,761,816,528.10 = 391,244,468,674.05/x
  3. Step 3: Cross multiply
    720,841,362,561.30x = 994,761,816,528.10 × 391,244,468,674.05
  4. Step 4: Simplify right side
    720,841,362,561.30x = 389,195,058,364,769,303,003,136
  5. Step 5: Solve for x
    x = 389,195,058,364,769,303,003,136/720,841,362,561.30
  6. Step 6: Final answer
    x = 539,917,766,347.20

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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.