Home / 720,841,362,560.55-994,761,816,527.02-391,244,468,673.30

Finding the Fourth Proportional to 720,841,362,560.55, 994,761,816,527.02 and 391,244,468,673.30

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Solution

The fourth proportional to 720,841,362,560.55, 994,761,816,527.02 and 391,244,468,673.30 is: 539,917,766,346.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,841,362,560.55 : 994,761,816,527.02 = 391,244,468,673.30 : x
  2. Step 2: Convert to fraction form
    720,841,362,560.55/994,761,816,527.02 = 391,244,468,673.30/x
  3. Step 3: Cross multiply
    720,841,362,560.55x = 994,761,816,527.02 × 391,244,468,673.30
  4. Step 4: Simplify right side
    720,841,362,560.55x = 389,195,058,363,600,669,245,440
  5. Step 5: Solve for x
    x = 389,195,058,363,600,669,245,440/720,841,362,560.55
  6. Step 6: Final answer
    x = 539,917,766,346.14

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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.