Home / 5,100,428.40-7,038,338.52-2,808,160.80

Finding the Fourth Proportional to 5,100,428.40, 7,038,338.52 and 2,808,160.80

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Solution

The fourth proportional to 5,100,428.40, 7,038,338.52 and 2,808,160.80 is: 3,875,122.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,100,428.40 : 7,038,338.52 = 2,808,160.80 : x
  2. Step 2: Convert to fraction form
    5,100,428.40/7,038,338.52 = 2,808,160.80/x
  3. Step 3: Cross multiply
    5,100,428.40x = 7,038,338.52 × 2,808,160.80
  4. Step 4: Simplify right side
    5,100,428.40x = 19,764,786,328,994.01
  5. Step 5: Solve for x
    x = 19,764,786,328,994.01/5,100,428.40
  6. Step 6: Final answer
    x = 3,875,122.79

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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.