Home / 8,178,755.07-11,285,127.50-4,914,378.72

Finding the Fourth Proportional to 8,178,755.07, 11,285,127.50 and 4,914,378.72

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Solution

The fourth proportional to 8,178,755.07, 11,285,127.50 and 4,914,378.72 is: 6,780,908.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,178,755.07 : 11,285,127.50 = 4,914,378.72 : x
  2. Step 2: Convert to fraction form
    8,178,755.07/11,285,127.50 = 4,914,378.72/x
  3. Step 3: Cross multiply
    8,178,755.07x = 11,285,127.50 × 4,914,378.72
  4. Step 4: Simplify right side
    8,178,755.07x = 55,459,390,478,985.56
  5. Step 5: Solve for x
    x = 55,459,390,478,985.56/8,178,755.07
  6. Step 6: Final answer
    x = 6,780,908.59

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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.