Home / 3,138,798.40-4,708,174.90-2,078,586.16

Finding the Fourth Proportional to 3,138,798.40, 4,708,174.90 and 2,078,586.16

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Solution

The fourth proportional to 3,138,798.40, 4,708,174.90 and 2,078,586.16 is: 3,117,864.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138,798.40 : 4,708,174.90 = 2,078,586.16 : x
  2. Step 2: Convert to fraction form
    3,138,798.40/4,708,174.90 = 2,078,586.16/x
  3. Step 3: Cross multiply
    3,138,798.40x = 4,708,174.90 × 2,078,586.16
  4. Step 4: Simplify right side
    3,138,798.40x = 9,786,347,185,999.39
  5. Step 5: Solve for x
    x = 9,786,347,185,999.39/3,138,798.40
  6. Step 6: Final answer
    x = 3,117,864.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.