Home / 423,151,230.12-634,437,076.86-215,487,663.72

Finding the Fourth Proportional to 423,151,230.12, 634,437,076.86 and 215,487,663.72

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Solution

The fourth proportional to 423,151,230.12, 634,437,076.86 and 215,487,663.72 is: 323,083,932.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,151,230.12 : 634,437,076.86 = 215,487,663.72 : x
  2. Step 2: Convert to fraction form
    423,151,230.12/634,437,076.86 = 215,487,663.72/x
  3. Step 3: Cross multiply
    423,151,230.12x = 634,437,076.86 × 215,487,663.72
  4. Step 4: Simplify right side
    423,151,230.12x = 136,713,363,469,907,472
  5. Step 5: Solve for x
    x = 136,713,363,469,907,472/423,151,230.12
  6. Step 6: Final answer
    x = 323,083,932.50

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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.