Home / 5,100,478.86-7,038,660.15-2,808,633.90

Finding the Fourth Proportional to 5,100,478.86, 7,038,660.15 and 2,808,633.90

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Solution

The fourth proportional to 5,100,478.86, 7,038,660.15 and 2,808,633.90 is: 3,875,914.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,100,478.86 : 7,038,660.15 = 2,808,633.90 : x
  2. Step 2: Convert to fraction form
    5,100,478.86/7,038,660.15 = 2,808,633.90/x
  3. Step 3: Cross multiply
    5,100,478.86x = 7,038,660.15 × 2,808,633.90
  4. Step 4: Simplify right side
    5,100,478.86x = 19,769,019,507,869.09
  5. Step 5: Solve for x
    x = 19,769,019,507,869.09/5,100,478.86
  6. Step 6: Final answer
    x = 3,875,914.41

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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.