Home / 20,430,900.91-30,637,128.90-5,854,486.37

Finding the Fourth Proportional to 20,430,900.91, 30,637,128.90 and 5,854,486.37

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Solution

The fourth proportional to 20,430,900.91, 30,637,128.90 and 5,854,486.37 is: 8,779,086.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,430,900.91 : 30,637,128.90 = 5,854,486.37 : x
  2. Step 2: Convert to fraction form
    20,430,900.91/30,637,128.90 = 5,854,486.37/x
  3. Step 3: Cross multiply
    20,430,900.91x = 30,637,128.90 × 5,854,486.37
  4. Step 4: Simplify right side
    20,430,900.91x = 179,364,653,560,983.09
  5. Step 5: Solve for x
    x = 179,364,653,560,983.09/20,430,900.91
  6. Step 6: Final answer
    x = 8,779,086.85

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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.