Home / 38,985,157.80-53,800,151.94-21,343,763.88

Finding the Fourth Proportional to 38,985,157.80, 53,800,151.94 and 21,343,763.88

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Solution

The fourth proportional to 38,985,157.80, 53,800,151.94 and 21,343,763.88 is: 29,454,741.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,985,157.80 : 53,800,151.94 = 21,343,763.88 : x
  2. Step 2: Convert to fraction form
    38,985,157.80/53,800,151.94 = 21,343,763.88/x
  3. Step 3: Cross multiply
    38,985,157.80x = 53,800,151.94 × 21,343,763.88
  4. Step 4: Simplify right side
    38,985,157.80x = 1,148,297,739,715,483.75
  5. Step 5: Solve for x
    x = 1,148,297,739,715,483.75/38,985,157.80
  6. Step 6: Final answer
    x = 29,454,741.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.