Home / 263,909,624.70-395,864,437.05-72,433,400.70

Finding the Fourth Proportional to 263,909,624.70, 395,864,437.05 and 72,433,400.70

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Solution

The fourth proportional to 263,909,624.70, 395,864,437.05 and 72,433,400.70 is: 108,650,101.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,909,624.70 : 395,864,437.05 = 72,433,400.70 : x
  2. Step 2: Convert to fraction form
    263,909,624.70/395,864,437.05 = 72,433,400.70/x
  3. Step 3: Cross multiply
    263,909,624.70x = 395,864,437.05 × 72,433,400.70
  4. Step 4: Simplify right side
    263,909,624.70x = 28,673,807,391,722,576
  5. Step 5: Solve for x
    x = 28,673,807,391,722,576/263,909,624.70
  6. Step 6: Final answer
    x = 108,650,101.05

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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.