Home / 78,005,643.90-117,008,465.85-37,694,859.90

Finding the Fourth Proportional to 78,005,643.90, 117,008,465.85 and 37,694,859.90

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Solution

The fourth proportional to 78,005,643.90, 117,008,465.85 and 37,694,859.90 is: 56,542,289.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,005,643.90 : 117,008,465.85 = 37,694,859.90 : x
  2. Step 2: Convert to fraction form
    78,005,643.90/117,008,465.85 = 37,694,859.90/x
  3. Step 3: Cross multiply
    78,005,643.90x = 117,008,465.85 × 37,694,859.90
  4. Step 4: Simplify right side
    78,005,643.90x = 4,410,617,727,329,684
  5. Step 5: Solve for x
    x = 4,410,617,727,329,684/78,005,643.90
  6. Step 6: Final answer
    x = 56,542,289.85

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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.