Home / 6,431,889.17-8,875,609.38-3,531,263.78

Finding the Fourth Proportional to 6,431,889.17, 8,875,609.38 and 3,531,263.78

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Solution

The fourth proportional to 6,431,889.17, 8,875,609.38 and 3,531,263.78 is: 4,872,925.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,431,889.17 : 8,875,609.38 = 3,531,263.78 : x
  2. Step 2: Convert to fraction form
    6,431,889.17/8,875,609.38 = 3,531,263.78/x
  3. Step 3: Cross multiply
    6,431,889.17x = 8,875,609.38 × 3,531,263.78
  4. Step 4: Simplify right side
    6,431,889.17x = 31,342,117,884,644.21
  5. Step 5: Solve for x
    x = 31,342,117,884,644.21/6,431,889.17
  6. Step 6: Final answer
    x = 4,872,925.68

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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.