Home / 388,577,963.48-536,236,716.98-221,314,213.31

Finding the Fourth Proportional to 388,577,963.48, 536,236,716.98 and 221,314,213.31

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Solution

The fourth proportional to 388,577,963.48, 536,236,716.98 and 221,314,213.31 is: 305,413,117.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,577,963.48 : 536,236,716.98 = 221,314,213.31 : x
  2. Step 2: Convert to fraction form
    388,577,963.48/536,236,716.98 = 221,314,213.31/x
  3. Step 3: Cross multiply
    388,577,963.48x = 536,236,716.98 × 221,314,213.31
  4. Step 4: Simplify right side
    388,577,963.48x = 118,676,807,164,237,936
  5. Step 5: Solve for x
    x = 118,676,807,164,237,936/388,577,963.48
  6. Step 6: Final answer
    x = 305,413,117.36

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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.