Home / 716,568,635,464.88-988,858,033,938.28-391,407,802,832.08

Finding the Fourth Proportional to 716,568,635,464.88, 988,858,033,938.28 and 391,407,802,832.08

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Solution

The fourth proportional to 716,568,635,464.88, 988,858,033,938.28 and 391,407,802,832.08 is: 540,139,117,483.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,568,635,464.88 : 988,858,033,938.28 = 391,407,802,832.08 : x
  2. Step 2: Convert to fraction form
    716,568,635,464.88/988,858,033,938.28 = 391,407,802,832.08/x
  3. Step 3: Cross multiply
    716,568,635,464.88x = 988,858,033,938.28 × 391,407,802,832.08
  4. Step 4: Simplify right side
    716,568,635,464.88x = 387,046,750,376,632,571,133,952
  5. Step 5: Solve for x
    x = 387,046,750,376,632,571,133,952/716,568,635,464.88
  6. Step 6: Final answer
    x = 540,139,117,483.89

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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.