Home / 487,268,995.82-671,687,315.66-298,748,273.18

Finding the Fourth Proportional to 487,268,995.82, 671,687,315.66 and 298,748,273.18

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Solution

The fourth proportional to 487,268,995.82, 671,687,315.66 and 298,748,273.18 is: 411,816,527.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,268,995.82 : 671,687,315.66 = 298,748,273.18 : x
  2. Step 2: Convert to fraction form
    487,268,995.82/671,687,315.66 = 298,748,273.18/x
  3. Step 3: Cross multiply
    487,268,995.82x = 671,687,315.66 × 298,748,273.18
  4. Step 4: Simplify right side
    487,268,995.82x = 200,665,425,670,334,560
  5. Step 5: Solve for x
    x = 200,665,425,670,334,560/487,268,995.82
  6. Step 6: Final answer
    x = 411,816,527.20

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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.