Home / 76,690,506.60-114,979,772.70-31,228,900.20

Finding the Fourth Proportional to 76,690,506.60, 114,979,772.70 and 31,228,900.20

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Solution

The fourth proportional to 76,690,506.60, 114,979,772.70 and 31,228,900.20 is: 46,820,551.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,690,506.60 : 114,979,772.70 = 31,228,900.20 : x
  2. Step 2: Convert to fraction form
    76,690,506.60/114,979,772.70 = 31,228,900.20/x
  3. Step 3: Cross multiply
    76,690,506.60x = 114,979,772.70 × 31,228,900.20
  4. Step 4: Simplify right side
    76,690,506.60x = 3,590,691,846,666,984.50
  5. Step 5: Solve for x
    x = 3,590,691,846,666,984.50/76,690,506.60
  6. Step 6: Final answer
    x = 46,820,551.93

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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.