Home / 79,194,639.60-118,803,769.20-28,072,639.80

Finding the Fourth Proportional to 79,194,639.60, 118,803,769.20 and 28,072,639.80

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Solution

The fourth proportional to 79,194,639.60, 118,803,769.20 and 28,072,639.80 is: 42,113,146.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,194,639.60 : 118,803,769.20 = 28,072,639.80 : x
  2. Step 2: Convert to fraction form
    79,194,639.60/118,803,769.20 = 28,072,639.80/x
  3. Step 3: Cross multiply
    79,194,639.60x = 118,803,769.20 × 28,072,639.80
  4. Step 4: Simplify right side
    79,194,639.60x = 3,335,135,419,633,934.50
  5. Step 5: Solve for x
    x = 3,335,135,419,633,934.50/79,194,639.60
  6. Step 6: Final answer
    x = 42,113,146.00

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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.