Home / 198,583,760.40-297,875,640.60-112,490,318.40

Finding the Fourth Proportional to 198,583,760.40, 297,875,640.60 and 112,490,318.40

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Solution

The fourth proportional to 198,583,760.40, 297,875,640.60 and 112,490,318.40 is: 168,735,477.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,583,760.40 : 297,875,640.60 = 112,490,318.40 : x
  2. Step 2: Convert to fraction form
    198,583,760.40/297,875,640.60 = 112,490,318.40/x
  3. Step 3: Cross multiply
    198,583,760.40x = 297,875,640.60 × 112,490,318.40
  4. Step 4: Simplify right side
    198,583,760.40x = 33,508,125,654,697,972
  5. Step 5: Solve for x
    x = 33,508,125,654,697,972/198,583,760.40
  6. Step 6: Final answer
    x = 168,735,477.60

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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.