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Finding the Fourth Proportional to 56,770,978.33, 78,343,981.58 and 30,665,496.30

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Solution

The fourth proportional to 56,770,978.33, 78,343,981.58 and 30,665,496.30 is: 42,318,401.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,770,978.33 : 78,343,981.58 = 30,665,496.30 : x
  2. Step 2: Convert to fraction form
    56,770,978.33/78,343,981.58 = 30,665,496.30/x
  3. Step 3: Cross multiply
    56,770,978.33x = 78,343,981.58 × 30,665,496.30
  4. Step 4: Simplify right side
    56,770,978.33x = 2,402,457,077,268,758
  5. Step 5: Solve for x
    x = 2,402,457,077,268,758/56,770,978.33
  6. Step 6: Final answer
    x = 42,318,401.90

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Why These Related Problems?

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