Home / 208,627,621.60-312,983,422.80-72,284,792.80

Finding the Fourth Proportional to 208,627,621.60, 312,983,422.80 and 72,284,792.80

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Solution

The fourth proportional to 208,627,621.60, 312,983,422.80 and 72,284,792.80 is: 108,441,737.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,627,621.60 : 312,983,422.80 = 72,284,792.80 : x
  2. Step 2: Convert to fraction form
    208,627,621.60/312,983,422.80 = 72,284,792.80/x
  3. Step 3: Cross multiply
    208,627,621.60x = 312,983,422.80 × 72,284,792.80
  4. Step 4: Simplify right side
    208,627,621.60x = 22,623,941,866,932,796
  5. Step 5: Solve for x
    x = 22,623,941,866,932,796/208,627,621.60
  6. Step 6: Final answer
    x = 108,441,737.93

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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.