Home / 137,792,140.80-206,688,211.20-91,875,638.40

Finding the Fourth Proportional to 137,792,140.80, 206,688,211.20 and 91,875,638.40

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Solution

The fourth proportional to 137,792,140.80, 206,688,211.20 and 91,875,638.40 is: 137,813,457.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,792,140.80 : 206,688,211.20 = 91,875,638.40 : x
  2. Step 2: Convert to fraction form
    137,792,140.80/206,688,211.20 = 91,875,638.40/x
  3. Step 3: Cross multiply
    137,792,140.80x = 206,688,211.20 × 91,875,638.40
  4. Step 4: Simplify right side
    137,792,140.80x = 18,989,611,353,754,032
  5. Step 5: Solve for x
    x = 18,989,611,353,754,032/137,792,140.80
  6. Step 6: Final answer
    x = 137,813,457.60

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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.