Home / 487,268,996.82-671,687,317.04-298,748,274.18

Finding the Fourth Proportional to 487,268,996.82, 671,687,317.04 and 298,748,274.18

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Solution

The fourth proportional to 487,268,996.82, 671,687,317.04 and 298,748,274.18 is: 411,816,528.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,268,996.82 : 671,687,317.04 = 298,748,274.18 : x
  2. Step 2: Convert to fraction form
    487,268,996.82/671,687,317.04 = 298,748,274.18/x
  3. Step 3: Cross multiply
    487,268,996.82x = 671,687,317.04 × 298,748,274.18
  4. Step 4: Simplify right side
    487,268,996.82x = 200,665,426,754,294,496
  5. Step 5: Solve for x
    x = 200,665,426,754,294,496/487,268,996.82
  6. Step 6: Final answer
    x = 411,816,528.58

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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.