Home / 720,841,362,557.35-994,761,816,522.67-391,244,468,670.10

Finding the Fourth Proportional to 720,841,362,557.35, 994,761,816,522.67 and 391,244,468,670.10

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Solution

The fourth proportional to 720,841,362,557.35, 994,761,816,522.67 and 391,244,468,670.10 is: 539,917,766,341.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,841,362,557.35 : 994,761,816,522.67 = 391,244,468,670.10 : x
  2. Step 2: Convert to fraction form
    720,841,362,557.35/994,761,816,522.67 = 391,244,468,670.10/x
  3. Step 3: Cross multiply
    720,841,362,557.35x = 994,761,816,522.67 × 391,244,468,670.10
  4. Step 4: Simplify right side
    720,841,362,557.35x = 389,195,058,358,715,546,599,424
  5. Step 5: Solve for x
    x = 389,195,058,358,715,546,599,424/720,841,362,557.35
  6. Step 6: Final answer
    x = 539,917,766,341.76

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1.5x scale

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.