Home / 14,997,378.15-20,696,278.82-8,121,702.87

Finding the Fourth Proportional to 14,997,378.15, 20,696,278.82 and 8,121,702.87

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Solution

The fourth proportional to 14,997,378.15, 20,696,278.82 and 8,121,702.87 is: 11,207,894.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,997,378.15 : 20,696,278.82 = 8,121,702.87 : x
  2. Step 2: Convert to fraction form
    14,997,378.15/20,696,278.82 = 8,121,702.87/x
  3. Step 3: Cross multiply
    14,997,378.15x = 20,696,278.82 × 8,121,702.87
  4. Step 4: Simplify right side
    14,997,378.15x = 168,089,027,050,105.72
  5. Step 5: Solve for x
    x = 168,089,027,050,105.72/14,997,378.15
  6. Step 6: Final answer
    x = 11,207,894.16

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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.