Home / 206,688,207.20-310,032,310.80-137,813,453.60

Finding the Fourth Proportional to 206,688,207.20, 310,032,310.80 and 137,813,453.60

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Solution

The fourth proportional to 206,688,207.20, 310,032,310.80 and 137,813,453.60 is: 206,720,180.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,688,207.20 : 310,032,310.80 = 137,813,453.60 : x
  2. Step 2: Convert to fraction form
    206,688,207.20/310,032,310.80 = 137,813,453.60/x
  3. Step 3: Cross multiply
    206,688,207.20x = 310,032,310.80 × 137,813,453.60
  4. Step 4: Simplify right side
    206,688,207.20x = 42,726,623,478,936,576
  5. Step 5: Solve for x
    x = 42,726,623,478,936,576/206,688,207.20
  6. Step 6: Final answer
    x = 206,720,180.40

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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.