Home / 12,528,035.10-18,792,052.65-7,048,287.90

Finding the Fourth Proportional to 12,528,035.10, 18,792,052.65 and 7,048,287.90

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Solution

The fourth proportional to 12,528,035.10, 18,792,052.65 and 7,048,287.90 is: 10,572,431.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528,035.10 : 18,792,052.65 = 7,048,287.90 : x
  2. Step 2: Convert to fraction form
    12,528,035.10/18,792,052.65 = 7,048,287.90/x
  3. Step 3: Cross multiply
    12,528,035.10x = 18,792,052.65 × 7,048,287.90
  4. Step 4: Simplify right side
    12,528,035.10x = 132,451,797,309,157.94
  5. Step 5: Solve for x
    x = 132,451,797,309,157.94/12,528,035.10
  6. Step 6: Final answer
    x = 10,572,431.85

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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.