Home / 206,792,040.30-309,762,907.65-142,168,814.70

Finding the Fourth Proportional to 206,792,040.30, 309,762,907.65 and 142,168,814.70

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Solution

The fourth proportional to 206,792,040.30, 309,762,907.65 and 142,168,814.70 is: 212,960,930.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,792,040.30 : 309,762,907.65 = 142,168,814.70 : x
  2. Step 2: Convert to fraction form
    206,792,040.30/309,762,907.65 = 142,168,814.70/x
  3. Step 3: Cross multiply
    206,792,040.30x = 309,762,907.65 × 142,168,814.70
  4. Step 4: Simplify right side
    206,792,040.30x = 44,038,625,418,626,056
  5. Step 5: Solve for x
    x = 44,038,625,418,626,056/206,792,040.30
  6. Step 6: Final answer
    x = 212,960,930.97

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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.