Home / 156,809,894.82-216,424,740.83-90,766,807.30

Finding the Fourth Proportional to 156,809,894.82, 216,424,740.83 and 90,766,807.30

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Solution

The fourth proportional to 156,809,894.82, 216,424,740.83 and 90,766,807.30 is: 125,273,872.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,809,894.82 : 216,424,740.83 = 90,766,807.30 : x
  2. Step 2: Convert to fraction form
    156,809,894.82/216,424,740.83 = 90,766,807.30/x
  3. Step 3: Cross multiply
    156,809,894.82x = 216,424,740.83 × 90,766,807.30
  4. Step 4: Simplify right side
    156,809,894.82x = 19,644,182,745,869,052
  5. Step 5: Solve for x
    x = 19,644,182,745,869,052/156,809,894.82
  6. Step 6: Final answer
    x = 125,273,872.34

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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.