Home / 548,356,712.88-756,732,208.08-310,196,808.72

Finding the Fourth Proportional to 548,356,712.88, 756,732,208.08 and 310,196,808.72

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Solution

The fourth proportional to 548,356,712.88, 756,732,208.08 and 310,196,808.72 is: 428,071,564.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,356,712.88 : 756,732,208.08 = 310,196,808.72 : x
  2. Step 2: Convert to fraction form
    548,356,712.88/756,732,208.08 = 310,196,808.72/x
  3. Step 3: Cross multiply
    548,356,712.88x = 756,732,208.08 × 310,196,808.72
  4. Step 4: Simplify right side
    548,356,712.88x = 234,735,916,002,055,040
  5. Step 5: Solve for x
    x = 234,735,916,002,055,040/548,356,712.88
  6. Step 6: Final answer
    x = 428,071,564.53

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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.