Home / 77,334,427.76-107,002,539.83-67,431,945.16

Finding the Fourth Proportional to 77,334,427.76, 107,002,539.83 and 67,431,945.16

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Solution

The fourth proportional to 77,334,427.76, 107,002,539.83 and 67,431,945.16 is: 93,301,128.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,334,427.76 : 107,002,539.83 = 67,431,945.16 : x
  2. Step 2: Convert to fraction form
    77,334,427.76/107,002,539.83 = 67,431,945.16/x
  3. Step 3: Cross multiply
    77,334,427.76x = 107,002,539.83 × 67,431,945.16
  4. Step 4: Simplify right side
    77,334,427.76x = 7,215,389,397,698,349
  5. Step 5: Solve for x
    x = 7,215,389,397,698,349/77,334,427.76
  6. Step 6: Final answer
    x = 93,301,128.70

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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.