Home / 28,772,642.80-43,088,105.40-13,608,859.60

Finding the Fourth Proportional to 28,772,642.80, 43,088,105.40 and 13,608,859.60

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Solution

The fourth proportional to 28,772,642.80, 43,088,105.40 and 13,608,859.60 is: 20,379,774.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,772,642.80 : 43,088,105.40 = 13,608,859.60 : x
  2. Step 2: Convert to fraction form
    28,772,642.80/43,088,105.40 = 13,608,859.60/x
  3. Step 3: Cross multiply
    28,772,642.80x = 43,088,105.40 × 13,608,859.60
  4. Step 4: Simplify right side
    28,772,642.80x = 586,379,976,818,601.75
  5. Step 5: Solve for x
    x = 586,379,976,818,601.75/28,772,642.80
  6. Step 6: Final answer
    x = 20,379,774.67

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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.