Home / 78,289,325.52-108,039,272.65-43,485,254.43

Finding the Fourth Proportional to 78,289,325.52, 108,039,272.65 and 43,485,254.43

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Solution

The fourth proportional to 78,289,325.52, 108,039,272.65 and 43,485,254.43 is: 60,009,653.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,289,325.52 : 108,039,272.65 = 43,485,254.43 : x
  2. Step 2: Convert to fraction form
    78,289,325.52/108,039,272.65 = 43,485,254.43/x
  3. Step 3: Cross multiply
    78,289,325.52x = 108,039,272.65 × 43,485,254.43
  4. Step 4: Simplify right side
    78,289,325.52x = 4,698,115,259,103,530
  5. Step 5: Solve for x
    x = 4,698,115,259,103,530/78,289,325.52
  6. Step 6: Final answer
    x = 60,009,653.02

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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.