Home / 12,528,036.20-18,792,054.30-7,489,188.20

Finding the Fourth Proportional to 12,528,036.20, 18,792,054.30 and 7,489,188.20

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Solution

The fourth proportional to 12,528,036.20, 18,792,054.30 and 7,489,188.20 is: 11,233,782.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528,036.20 : 18,792,054.30 = 7,489,188.20 : x
  2. Step 2: Convert to fraction form
    12,528,036.20/18,792,054.30 = 7,489,188.20/x
  3. Step 3: Cross multiply
    12,528,036.20x = 18,792,054.30 × 7,489,188.20
  4. Step 4: Simplify right side
    12,528,036.20x = 140,737,231,317,319.27
  5. Step 5: Solve for x
    x = 140,737,231,317,319.27/12,528,036.20
  6. Step 6: Final answer
    x = 11,233,782.30

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1.5x scale

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.