Home / 78,155,913.62-117,085,895.22-52,169,859.32

Finding the Fourth Proportional to 78,155,913.62, 117,085,895.22 and 52,169,859.32

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Solution

The fourth proportional to 78,155,913.62, 117,085,895.22 and 52,169,859.32 is: 78,156,014.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,155,913.62 : 117,085,895.22 = 52,169,859.32 : x
  2. Step 2: Convert to fraction form
    78,155,913.62/117,085,895.22 = 52,169,859.32/x
  3. Step 3: Cross multiply
    78,155,913.62x = 117,085,895.22 × 52,169,859.32
  4. Step 4: Simplify right side
    78,155,913.62x = 6,108,354,681,983,660
  5. Step 5: Solve for x
    x = 6,108,354,681,983,660/78,155,913.62
  6. Step 6: Final answer
    x = 78,156,014.04

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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.