Home / 208,593,136.80-312,889,705.20-93,581,431.20

Finding the Fourth Proportional to 208,593,136.80, 312,889,705.20 and 93,581,431.20

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Solution

The fourth proportional to 208,593,136.80, 312,889,705.20 and 93,581,431.20 is: 140,372,146.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,593,136.80 : 312,889,705.20 = 93,581,431.20 : x
  2. Step 2: Convert to fraction form
    208,593,136.80/312,889,705.20 = 93,581,431.20/x
  3. Step 3: Cross multiply
    208,593,136.80x = 312,889,705.20 × 93,581,431.20
  4. Step 4: Simplify right side
    208,593,136.80x = 29,280,666,420,362,084
  5. Step 5: Solve for x
    x = 29,280,666,420,362,084/208,593,136.80
  6. Step 6: Final answer
    x = 140,372,146.80

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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.