Home / 20,456,505.76-30,676,782.96-7,670,027.68

Finding the Fourth Proportional to 20,456,505.76, 30,676,782.96 and 7,670,027.68

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Solution

The fourth proportional to 20,456,505.76, 30,676,782.96 and 7,670,027.68 is: 11,502,051.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,456,505.76 : 30,676,782.96 = 7,670,027.68 : x
  2. Step 2: Convert to fraction form
    20,456,505.76/30,676,782.96 = 7,670,027.68/x
  3. Step 3: Cross multiply
    20,456,505.76x = 30,676,782.96 × 7,670,027.68
  4. Step 4: Simplify right side
    20,456,505.76x = 235,291,774,436,552.34
  5. Step 5: Solve for x
    x = 235,291,774,436,552.34/20,456,505.76
  6. Step 6: Final answer
    x = 11,502,051.09

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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.