Home / 28,011,674.76-38,656,033.48-15,621,779.86

Finding the Fourth Proportional to 28,011,674.76, 38,656,033.48 and 15,621,779.86

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Solution

The fourth proportional to 28,011,674.76, 38,656,033.48 and 15,621,779.86 is: 21,558,012.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,011,674.76 : 38,656,033.48 = 15,621,779.86 : x
  2. Step 2: Convert to fraction form
    28,011,674.76/38,656,033.48 = 15,621,779.86/x
  3. Step 3: Cross multiply
    28,011,674.76x = 38,656,033.48 × 15,621,779.86
  4. Step 4: Simplify right side
    28,011,674.76x = 603,876,045,285,349.62
  5. Step 5: Solve for x
    x = 603,876,045,285,349.62/28,011,674.76
  6. Step 6: Final answer
    x = 21,558,012.88

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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.