Home / 724,468,998.30-1,086,703,497.45-521,907,308.70

Finding the Fourth Proportional to 724,468,998.30, 1,086,703,497.45 and 521,907,308.70

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Solution

The fourth proportional to 724,468,998.30, 1,086,703,497.45 and 521,907,308.70 is: 782,860,963.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,468,998.30 : 1,086,703,497.45 = 521,907,308.70 : x
  2. Step 2: Convert to fraction form
    724,468,998.30/1,086,703,497.45 = 521,907,308.70/x
  3. Step 3: Cross multiply
    724,468,998.30x = 1,086,703,497.45 × 521,907,308.70
  4. Step 4: Simplify right side
    724,468,998.30x = 567,158,497,709,006,848
  5. Step 5: Solve for x
    x = 567,158,497,709,006,848/724,468,998.30
  6. Step 6: Final answer
    x = 782,860,963.05

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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.