Home / 72,580,863.20-108,745,323.60-47,008,709.60

Finding the Fourth Proportional to 72,580,863.20, 108,745,323.60 and 47,008,709.60

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Solution

The fourth proportional to 72,580,863.20, 108,745,323.60 and 47,008,709.60 is: 70,431,476.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,580,863.20 : 108,745,323.60 = 47,008,709.60 : x
  2. Step 2: Convert to fraction form
    72,580,863.20/108,745,323.60 = 47,008,709.60/x
  3. Step 3: Cross multiply
    72,580,863.20x = 108,745,323.60 × 47,008,709.60
  4. Step 4: Simplify right side
    72,580,863.20x = 5,111,977,337,470,426
  5. Step 5: Solve for x
    x = 5,111,977,337,470,426/72,580,863.20
  6. Step 6: Final answer
    x = 70,431,476.18

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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.