Home / 772,412,887.13-1,065,922,380.51-419,989,001.81

Finding the Fourth Proportional to 772,412,887.13, 1,065,922,380.51 and 419,989,001.81

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Solution

The fourth proportional to 772,412,887.13, 1,065,922,380.51 and 419,989,001.81 is: 579,580,796.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,412,887.13 : 1,065,922,380.51 = 419,989,001.81 : x
  2. Step 2: Convert to fraction form
    772,412,887.13/1,065,922,380.51 = 419,989,001.81/x
  3. Step 3: Cross multiply
    772,412,887.13x = 1,065,922,380.51 × 419,989,001.81
  4. Step 4: Simplify right side
    772,412,887.13x = 447,675,676,597,333,888
  5. Step 5: Solve for x
    x = 447,675,676,597,333,888/772,412,887.13
  6. Step 6: Final answer
    x = 579,580,796.82

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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.