Home / 72,183,288.24-108,273,133.08-21,065,749.92

Finding the Fourth Proportional to 72,183,288.24, 108,273,133.08 and 21,065,749.92

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Solution

The fourth proportional to 72,183,288.24, 108,273,133.08 and 21,065,749.92 is: 31,598,099.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,183,288.24 : 108,273,133.08 = 21,065,749.92 : x
  2. Step 2: Convert to fraction form
    72,183,288.24/108,273,133.08 = 21,065,749.92/x
  3. Step 3: Cross multiply
    72,183,288.24x = 108,273,133.08 × 21,065,749.92
  4. Step 4: Simplify right side
    72,183,288.24x = 2,280,854,744,518,159.50
  5. Step 5: Solve for x
    x = 2,280,854,744,518,159.50/72,183,288.24
  6. Step 6: Final answer
    x = 31,598,099.78

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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.