Home / 772,139,349.35-1,065,552,988.73-419,715,340.07

Finding the Fourth Proportional to 772,139,349.35, 1,065,552,988.73 and 419,715,340.07

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Solution

The fourth proportional to 772,139,349.35, 1,065,552,988.73 and 419,715,340.07 is: 579,207,542.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,139,349.35 : 1,065,552,988.73 = 419,715,340.07 : x
  2. Step 2: Convert to fraction form
    772,139,349.35/1,065,552,988.73 = 419,715,340.07/x
  3. Step 3: Cross multiply
    772,139,349.35x = 1,065,552,988.73 × 419,715,340.07
  4. Step 4: Simplify right side
    772,139,349.35x = 447,228,935,027,982,144
  5. Step 5: Solve for x
    x = 447,228,935,027,982,144/772,139,349.35
  6. Step 6: Final answer
    x = 579,207,542.53

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.