Home / 5,871,876.80-8,807,815.20-5,125,380.80

Finding the Fourth Proportional to 5,871,876.80, 8,807,815.20 and 5,125,380.80

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Solution

The fourth proportional to 5,871,876.80, 8,807,815.20 and 5,125,380.80 is: 7,688,071.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,871,876.80 : 8,807,815.20 = 5,125,380.80 : x
  2. Step 2: Convert to fraction form
    5,871,876.80/8,807,815.20 = 5,125,380.80/x
  3. Step 3: Cross multiply
    5,871,876.80x = 8,807,815.20 × 5,125,380.80
  4. Step 4: Simplify right side
    5,871,876.80x = 45,143,406,916,028.16
  5. Step 5: Solve for x
    x = 45,143,406,916,028.16/5,871,876.80
  6. Step 6: Final answer
    x = 7,688,071.20

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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.