Home / 137,792,136.80-206,688,205.20-91,875,634.40

Finding the Fourth Proportional to 137,792,136.80, 206,688,205.20 and 91,875,634.40

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Solution

The fourth proportional to 137,792,136.80, 206,688,205.20 and 91,875,634.40 is: 137,813,451.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,792,136.80 : 206,688,205.20 = 91,875,634.40 : x
  2. Step 2: Convert to fraction form
    137,792,136.80/206,688,205.20 = 91,875,634.40/x
  3. Step 3: Cross multiply
    137,792,136.80x = 206,688,205.20 × 91,875,634.40
  4. Step 4: Simplify right side
    137,792,136.80x = 18,989,609,975,747,380
  5. Step 5: Solve for x
    x = 18,989,609,975,747,380/137,792,136.80
  6. Step 6: Final answer
    x = 137,813,451.60

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1.5x scale

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.