Home / 65,343,672.10-90,107,428.89-43,309,520.74

Finding the Fourth Proportional to 65,343,672.10, 90,107,428.89 and 43,309,520.74

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Solution

The fourth proportional to 65,343,672.10, 90,107,428.89 and 43,309,520.74 is: 59,722,838.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,343,672.10 : 90,107,428.89 = 43,309,520.74 : x
  2. Step 2: Convert to fraction form
    65,343,672.10/90,107,428.89 = 43,309,520.74/x
  3. Step 3: Cross multiply
    65,343,672.10x = 90,107,428.89 × 43,309,520.74
  4. Step 4: Simplify right side
    65,343,672.10x = 3,902,509,560,339,530.50
  5. Step 5: Solve for x
    x = 3,902,509,560,339,530.50/65,343,672.10
  6. Step 6: Final answer
    x = 59,722,838.26

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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.