Home / 18,909,670.56-28,373,363.19-9,319,821.36

Finding the Fourth Proportional to 18,909,670.56, 28,373,363.19 and 9,319,821.36

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Solution

The fourth proportional to 18,909,670.56, 28,373,363.19 and 9,319,821.36 is: 13,984,097.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,909,670.56 : 28,373,363.19 = 9,319,821.36 : x
  2. Step 2: Convert to fraction form
    18,909,670.56/28,373,363.19 = 9,319,821.36/x
  3. Step 3: Cross multiply
    18,909,670.56x = 28,373,363.19 × 9,319,821.36
  4. Step 4: Simplify right side
    18,909,670.56x = 264,434,676,313,199.72
  5. Step 5: Solve for x
    x = 264,434,676,313,199.72/18,909,670.56
  6. Step 6: Final answer
    x = 13,984,097.47

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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.