Home / 312,468,675.32-468,794,022.14-139,905,132.50

Finding the Fourth Proportional to 312,468,675.32, 468,794,022.14 and 139,905,132.50

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Solution

The fourth proportional to 312,468,675.32, 468,794,022.14 and 139,905,132.50 is: 209,898,447.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,468,675.32 : 468,794,022.14 = 139,905,132.50 : x
  2. Step 2: Convert to fraction form
    312,468,675.32/468,794,022.14 = 139,905,132.50/x
  3. Step 3: Cross multiply
    312,468,675.32x = 468,794,022.14 × 139,905,132.50
  4. Step 4: Simplify right side
    312,468,675.32x = 65,586,689,784,226,376
  5. Step 5: Solve for x
    x = 65,586,689,784,226,376/312,468,675.32
  6. Step 6: Final answer
    x = 209,898,447.31

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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.