Home / 49,931,622.20-74,841,446.10-21,172,863.80

Finding the Fourth Proportional to 49,931,622.20, 74,841,446.10 and 21,172,863.80

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Solution

The fourth proportional to 49,931,622.20, 74,841,446.10 and 21,172,863.80 is: 31,735,555.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,931,622.20 : 74,841,446.10 = 21,172,863.80 : x
  2. Step 2: Convert to fraction form
    49,931,622.20/74,841,446.10 = 21,172,863.80/x
  3. Step 3: Cross multiply
    49,931,622.20x = 74,841,446.10 × 21,172,863.80
  4. Step 4: Simplify right side
    49,931,622.20x = 1,584,607,744,870,341
  5. Step 5: Solve for x
    x = 1,584,607,744,870,341/49,931,622.20
  6. Step 6: Final answer
    x = 31,735,555.05

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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.