Home / 78,089,549.38-107,770,027.17-43,293,154.66

Finding the Fourth Proportional to 78,089,549.38, 107,770,027.17 and 43,293,154.66

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Solution

The fourth proportional to 78,089,549.38, 107,770,027.17 and 43,293,154.66 is: 59,748,128.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,089,549.38 : 107,770,027.17 = 43,293,154.66 : x
  2. Step 2: Convert to fraction form
    78,089,549.38/107,770,027.17 = 43,293,154.66/x
  3. Step 3: Cross multiply
    78,089,549.38x = 107,770,027.17 × 43,293,154.66
  4. Step 4: Simplify right side
    78,089,549.38x = 4,665,704,453,983,212
  5. Step 5: Solve for x
    x = 4,665,704,453,983,212/78,089,549.38
  6. Step 6: Final answer
    x = 59,748,128.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.