Home / 680,245,917,296.84-938,767,884,974.80-391,214,402,355.28

Finding the Fourth Proportional to 680,245,917,296.84, 938,767,884,974.80 and 391,214,402,355.28

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Solution

The fourth proportional to 680,245,917,296.84, 938,767,884,974.80 and 391,214,402,355.28 is: 539,892,276,796.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,245,917,296.84 : 938,767,884,974.80 = 391,214,402,355.28 : x
  2. Step 2: Convert to fraction form
    680,245,917,296.84/938,767,884,974.80 = 391,214,402,355.28/x
  3. Step 3: Cross multiply
    680,245,917,296.84x = 938,767,884,974.80 × 391,214,402,355.28
  4. Step 4: Simplify right side
    680,245,917,296.84x = 367,259,517,070,746,660,634,624
  5. Step 5: Solve for x
    x = 367,259,517,070,746,660,634,624/680,245,917,296.84
  6. Step 6: Final answer
    x = 539,892,276,796.25

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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.