Home / 20,739,244.40-31,108,866.60-7,277,433.20

Finding the Fourth Proportional to 20,739,244.40, 31,108,866.60 and 7,277,433.20

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Solution

The fourth proportional to 20,739,244.40, 31,108,866.60 and 7,277,433.20 is: 10,916,149.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,739,244.40 : 31,108,866.60 = 7,277,433.20 : x
  2. Step 2: Convert to fraction form
    20,739,244.40/31,108,866.60 = 7,277,433.20/x
  3. Step 3: Cross multiply
    20,739,244.40x = 31,108,866.60 × 7,277,433.20
  4. Step 4: Simplify right side
    20,739,244.40x = 226,392,698,609,211.12
  5. Step 5: Solve for x
    x = 226,392,698,609,211.12/20,739,244.40
  6. Step 6: Final answer
    x = 10,916,149.80

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1.5x scale

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.