Home / 5,477,128.40-8,216,470.20-1,690,216.40

Finding the Fourth Proportional to 5,477,128.40, 8,216,470.20 and 1,690,216.40

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Solution

The fourth proportional to 5,477,128.40, 8,216,470.20 and 1,690,216.40 is: 2,535,564.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,477,128.40 : 8,216,470.20 = 1,690,216.40 : x
  2. Step 2: Convert to fraction form
    5,477,128.40/8,216,470.20 = 1,690,216.40/x
  3. Step 3: Cross multiply
    5,477,128.40x = 8,216,470.20 × 1,690,216.40
  4. Step 4: Simplify right side
    5,477,128.40x = 13,887,612,682,151.28
  5. Step 5: Solve for x
    x = 13,887,612,682,151.28/5,477,128.40
  6. Step 6: Final answer
    x = 2,535,564.56

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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.