Home / 8,747,779.41-13,138,696.87-7,129,743.86

Finding the Fourth Proportional to 8,747,779.41, 13,138,696.87 and 7,129,743.86

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Solution

The fourth proportional to 8,747,779.41, 13,138,696.87 and 7,129,743.86 is: 10,708,494.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,747,779.41 : 13,138,696.87 = 7,129,743.86 : x
  2. Step 2: Convert to fraction form
    8,747,779.41/13,138,696.87 = 7,129,743.86/x
  3. Step 3: Cross multiply
    8,747,779.41x = 13,138,696.87 × 7,129,743.86
  4. Step 4: Simplify right side
    8,747,779.41x = 93,675,543,355,108.09
  5. Step 5: Solve for x
    x = 93,675,543,355,108.09/8,747,779.41
  6. Step 6: Final answer
    x = 10,708,494.01

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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.