Home / 49,908,239.20-74,851,861.20-21,155,312.80

Finding the Fourth Proportional to 49,908,239.20, 74,851,861.20 and 21,155,312.80

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Solution

The fourth proportional to 49,908,239.20, 74,851,861.20 and 21,155,312.80 is: 31,728,519.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,908,239.20 : 74,851,861.20 = 21,155,312.80 : x
  2. Step 2: Convert to fraction form
    49,908,239.20/74,851,861.20 = 21,155,312.80/x
  3. Step 3: Cross multiply
    49,908,239.20x = 74,851,861.20 × 21,155,312.80
  4. Step 4: Simplify right side
    49,908,239.20x = 1,583,514,537,348,183.50
  5. Step 5: Solve for x
    x = 1,583,514,537,348,183.50/49,908,239.20
  6. Step 6: Final answer
    x = 31,728,519.43

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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.