Home / 72,687,779.28-109,103,496.24-31,775,457.84

Finding the Fourth Proportional to 72,687,779.28, 109,103,496.24 and 31,775,457.84

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Solution

The fourth proportional to 72,687,779.28, 109,103,496.24 and 31,775,457.84 is: 47,694,586.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,687,779.28 : 109,103,496.24 = 31,775,457.84 : x
  2. Step 2: Convert to fraction form
    72,687,779.28/109,103,496.24 = 31,775,457.84/x
  3. Step 3: Cross multiply
    72,687,779.28x = 109,103,496.24 × 31,775,457.84
  4. Step 4: Simplify right side
    72,687,779.28x = 3,466,813,544,970,718.50
  5. Step 5: Solve for x
    x = 3,466,813,544,970,718.50/72,687,779.28
  6. Step 6: Final answer
    x = 47,694,586.07

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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.