Home / 680,245,917,308.95-938,767,884,991.60-391,214,402,367.42

Finding the Fourth Proportional to 680,245,917,308.95, 938,767,884,991.60 and 391,214,402,367.42

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Solution

The fourth proportional to 680,245,917,308.95, 938,767,884,991.60 and 391,214,402,367.42 is: 539,892,276,813.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,245,917,308.95 : 938,767,884,991.60 = 391,214,402,367.42 : x
  2. Step 2: Convert to fraction form
    680,245,917,308.95/938,767,884,991.60 = 391,214,402,367.42/x
  3. Step 3: Cross multiply
    680,245,917,308.95x = 938,767,884,991.60 × 391,214,402,367.42
  4. Step 4: Simplify right side
    680,245,917,308.95x = 367,259,517,088,715,662,950,400
  5. Step 5: Solve for x
    x = 367,259,517,088,715,662,950,400/680,245,917,308.95
  6. Step 6: Final answer
    x = 539,892,276,813.06

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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.