Home / 5,430,925.78-7,493,844.45-3,138,643.78

Finding the Fourth Proportional to 5,430,925.78, 7,493,844.45 and 3,138,643.78

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Solution

The fourth proportional to 5,430,925.78, 7,493,844.45 and 3,138,643.78 is: 4,330,846.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430,925.78 : 7,493,844.45 = 3,138,643.78 : x
  2. Step 2: Convert to fraction form
    5,430,925.78/7,493,844.45 = 3,138,643.78/x
  3. Step 3: Cross multiply
    5,430,925.78x = 7,493,844.45 × 3,138,643.78
  4. Step 4: Simplify right side
    5,430,925.78x = 23,520,508,271,280.02
  5. Step 5: Solve for x
    x = 23,520,508,271,280.02/5,430,925.78
  6. Step 6: Final answer
    x = 4,330,846.94

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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.