Home / 6,428,620.89-8,871,217.40-3,528,059.90

Finding the Fourth Proportional to 6,428,620.89, 8,871,217.40 and 3,528,059.90

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Solution

The fourth proportional to 6,428,620.89, 8,871,217.40 and 3,528,059.90 is: 4,868,569.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,428,620.89 : 8,871,217.40 = 3,528,059.90 : x
  2. Step 2: Convert to fraction form
    6,428,620.89/8,871,217.40 = 3,528,059.90/x
  3. Step 3: Cross multiply
    6,428,620.89x = 8,871,217.40 × 3,528,059.90
  4. Step 4: Simplify right side
    6,428,620.89x = 31,298,186,337,586.32
  5. Step 5: Solve for x
    x = 31,298,186,337,586.32/6,428,620.89
  6. Step 6: Final answer
    x = 4,868,569.30

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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.