Home / 208,288,431.26-312,439,232.83-77,163,522.96

Finding the Fourth Proportional to 208,288,431.26, 312,439,232.83 and 77,163,522.96

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Solution

The fourth proportional to 208,288,431.26, 312,439,232.83 and 77,163,522.96 is: 115,747,724.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,288,431.26 : 312,439,232.83 = 77,163,522.96 : x
  2. Step 2: Convert to fraction form
    208,288,431.26/312,439,232.83 = 77,163,522.96/x
  3. Step 3: Cross multiply
    208,288,431.26x = 312,439,232.83 × 77,163,522.96
  4. Step 4: Simplify right side
    208,288,431.26x = 24,108,911,916,326,948
  5. Step 5: Solve for x
    x = 24,108,911,916,326,948/208,288,431.26
  6. Step 6: Final answer
    x = 115,747,724.30

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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.