Home / 72,724,771.64-100,362,314.36-39,687,149.57

Finding the Fourth Proportional to 72,724,771.64, 100,362,314.36 and 39,687,149.57

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Solution

The fourth proportional to 72,724,771.64, 100,362,314.36 and 39,687,149.57 is: 54,769,428.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,724,771.64 : 100,362,314.36 = 39,687,149.57 : x
  2. Step 2: Convert to fraction form
    72,724,771.64/100,362,314.36 = 39,687,149.57/x
  3. Step 3: Cross multiply
    72,724,771.64x = 100,362,314.36 × 39,687,149.57
  4. Step 4: Simplify right side
    72,724,771.64x = 3,983,094,180,794,085
  5. Step 5: Solve for x
    x = 3,983,094,180,794,085/72,724,771.64
  6. Step 6: Final answer
    x = 54,769,428.50

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.