Home / 772,182,597.49-1,065,604,414.05-419,737,618.51

Finding the Fourth Proportional to 772,182,597.49, 1,065,604,414.05 and 419,737,618.51

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Solution

The fourth proportional to 772,182,597.49, 1,065,604,414.05 and 419,737,618.51 is: 579,233,798.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,182,597.49 : 1,065,604,414.05 = 419,737,618.51 : x
  2. Step 2: Convert to fraction form
    772,182,597.49/1,065,604,414.05 = 419,737,618.51/x
  3. Step 3: Cross multiply
    772,182,597.49x = 1,065,604,414.05 × 419,737,618.51
  4. Step 4: Simplify right side
    772,182,597.49x = 447,274,259,024,426,944
  5. Step 5: Solve for x
    x = 447,274,259,024,426,944/772,182,597.49
  6. Step 6: Final answer
    x = 579,233,798.43

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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.