Home / 55,102,915.20-82,685,865.60-21,048,700.80

Finding the Fourth Proportional to 55,102,915.20, 82,685,865.60 and 21,048,700.80

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Solution

The fourth proportional to 55,102,915.20, 82,685,865.60 and 21,048,700.80 is: 31,585,081.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,102,915.20 : 82,685,865.60 = 21,048,700.80 : x
  2. Step 2: Convert to fraction form
    55,102,915.20/82,685,865.60 = 21,048,700.80/x
  3. Step 3: Cross multiply
    55,102,915.20x = 82,685,865.60 × 21,048,700.80
  4. Step 4: Simplify right side
    55,102,915.20x = 1,740,430,045,403,412.50
  5. Step 5: Solve for x
    x = 1,740,430,045,403,412.50/55,102,915.20
  6. Step 6: Final answer
    x = 31,585,081.10

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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.