Home / 627,489,678.97-941,349,438.67-258,823,519.69

Finding the Fourth Proportional to 627,489,678.97, 941,349,438.67 and 258,823,519.69

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Solution

The fourth proportional to 627,489,678.97, 941,349,438.67 and 258,823,519.69 is: 388,282,681.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,489,678.97 : 941,349,438.67 = 258,823,519.69 : x
  2. Step 2: Convert to fraction form
    627,489,678.97/941,349,438.67 = 258,823,519.69/x
  3. Step 3: Cross multiply
    627,489,678.97x = 941,349,438.67 × 258,823,519.69
  4. Step 4: Simplify right side
    627,489,678.97x = 243,643,374,974,775,168
  5. Step 5: Solve for x
    x = 243,643,374,974,775,168/627,489,678.97
  6. Step 6: Final answer
    x = 388,282,681.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.