Home / 5,430,186.74-7,493,220.69-3,138,495.86

Finding the Fourth Proportional to 5,430,186.74, 7,493,220.69 and 3,138,495.86

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Solution

The fourth proportional to 5,430,186.74, 7,493,220.69 and 3,138,495.86 is: 4,330,871.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430,186.74 : 7,493,220.69 = 3,138,495.86 : x
  2. Step 2: Convert to fraction form
    5,430,186.74/7,493,220.69 = 3,138,495.86/x
  3. Step 3: Cross multiply
    5,430,186.74x = 7,493,220.69 × 3,138,495.86
  4. Step 4: Simplify right side
    5,430,186.74x = 23,517,442,113,631.34
  5. Step 5: Solve for x
    x = 23,517,442,113,631.34/5,430,186.74
  6. Step 6: Final answer
    x = 4,330,871.71

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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.