Home / 280,676,640.31-420,684,330.71-114,576,411.50

Finding the Fourth Proportional to 280,676,640.31, 420,684,330.71 and 114,576,411.50

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Solution

The fourth proportional to 280,676,640.31, 420,684,330.71 and 114,576,411.50 is: 171,729,649.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,676,640.31 : 420,684,330.71 = 114,576,411.50 : x
  2. Step 2: Convert to fraction form
    280,676,640.31/420,684,330.71 = 114,576,411.50/x
  3. Step 3: Cross multiply
    280,676,640.31x = 420,684,330.71 × 114,576,411.50
  4. Step 4: Simplify right side
    280,676,640.31x = 48,200,500,986,791,632
  5. Step 5: Solve for x
    x = 48,200,500,986,791,632/280,676,640.31
  6. Step 6: Final answer
    x = 171,729,649.23

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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.