Home / 206,688,292.80-310,032,439.20-137,813,539.20

Finding the Fourth Proportional to 206,688,292.80, 310,032,439.20 and 137,813,539.20

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Solution

The fourth proportional to 206,688,292.80, 310,032,439.20 and 137,813,539.20 is: 206,720,308.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,688,292.80 : 310,032,439.20 = 137,813,539.20 : x
  2. Step 2: Convert to fraction form
    206,688,292.80/310,032,439.20 = 137,813,539.20/x
  3. Step 3: Cross multiply
    206,688,292.80x = 310,032,439.20 × 137,813,539.20
  4. Step 4: Simplify right side
    206,688,292.80x = 42,726,667,712,960,808
  5. Step 5: Solve for x
    x = 42,726,667,712,960,808/206,688,292.80
  6. Step 6: Final answer
    x = 206,720,308.80

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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.