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Finding the Fourth Proportional to 375,907,955.57, 518,710,904.46 and 208,651,267.37

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Solution

The fourth proportional to 375,907,955.57, 518,710,904.46 and 208,651,267.37 is: 287,915,395.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,907,955.57 : 518,710,904.46 = 208,651,267.37 : x
  2. Step 2: Convert to fraction form
    375,907,955.57/518,710,904.46 = 208,651,267.37/x
  3. Step 3: Cross multiply
    375,907,955.57x = 518,710,904.46 × 208,651,267.37
  4. Step 4: Simplify right side
    375,907,955.57x = 108,229,687,611,624,432
  5. Step 5: Solve for x
    x = 108,229,687,611,624,432/375,907,955.57
  6. Step 6: Final answer
    x = 287,915,395.27

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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.