Home / 28,871,821.80-43,307,355.94-7,012,380.22

Finding the Fourth Proportional to 28,871,821.80, 43,307,355.94 and 7,012,380.22

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Solution

The fourth proportional to 28,871,821.80, 43,307,355.94 and 7,012,380.22 is: 10,518,478.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,871,821.80 : 43,307,355.94 = 7,012,380.22 : x
  2. Step 2: Convert to fraction form
    28,871,821.80/43,307,355.94 = 7,012,380.22/x
  3. Step 3: Cross multiply
    28,871,821.80x = 43,307,355.94 × 7,012,380.22
  4. Step 4: Simplify right side
    28,871,821.80x = 303,687,646,174,155.50
  5. Step 5: Solve for x
    x = 303,687,646,174,155.50/28,871,821.80
  6. Step 6: Final answer
    x = 10,518,478.82

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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.