Home / 13,690,339.20-18,886,737.60-8,254,811.52

Finding the Fourth Proportional to 13,690,339.20, 18,886,737.60 and 8,254,811.52

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Solution

The fourth proportional to 13,690,339.20, 18,886,737.60 and 8,254,811.52 is: 11,388,064.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,690,339.20 : 18,886,737.60 = 8,254,811.52 : x
  2. Step 2: Convert to fraction form
    13,690,339.20/18,886,737.60 = 8,254,811.52/x
  3. Step 3: Cross multiply
    13,690,339.20x = 18,886,737.60 × 8,254,811.52
  4. Step 4: Simplify right side
    13,690,339.20x = 155,906,459,115,697.16
  5. Step 5: Solve for x
    x = 155,906,459,115,697.16/13,690,339.20
  6. Step 6: Final answer
    x = 11,388,064.01

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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.