Home / 389,008,881.48-536,845,060.83-212,792,844.25

Finding the Fourth Proportional to 389,008,881.48, 536,845,060.83 and 212,792,844.25

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Solution

The fourth proportional to 389,008,881.48, 536,845,060.83 and 212,792,844.25 is: 293,661,129.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,008,881.48 : 536,845,060.83 = 212,792,844.25 : x
  2. Step 2: Convert to fraction form
    389,008,881.48/536,845,060.83 = 212,792,844.25/x
  3. Step 3: Cross multiply
    389,008,881.48x = 536,845,060.83 × 212,792,844.25
  4. Step 4: Simplify right side
    389,008,881.48x = 114,236,787,415,250,896
  5. Step 5: Solve for x
    x = 114,236,787,415,250,896/389,008,881.48
  6. Step 6: Final answer
    x = 293,661,129.23

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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.