Home / 210,345,120.80-315,517,681.20-97,098,912.80

Finding the Fourth Proportional to 210,345,120.80, 315,517,681.20 and 97,098,912.80

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Solution

The fourth proportional to 210,345,120.80, 315,517,681.20 and 97,098,912.80 is: 145,648,369.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,345,120.80 : 315,517,681.20 = 97,098,912.80 : x
  2. Step 2: Convert to fraction form
    210,345,120.80/315,517,681.20 = 97,098,912.80/x
  3. Step 3: Cross multiply
    210,345,120.80x = 315,517,681.20 × 97,098,912.80
  4. Step 4: Simplify right side
    210,345,120.80x = 30,636,423,813,696,996
  5. Step 5: Solve for x
    x = 30,636,423,813,696,996/210,345,120.80
  6. Step 6: Final answer
    x = 145,648,369.20

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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.