Home / 79,274,242.80-118,911,364.20-67,181,007.60

Finding the Fourth Proportional to 79,274,242.80, 118,911,364.20 and 67,181,007.60

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Solution

The fourth proportional to 79,274,242.80, 118,911,364.20 and 67,181,007.60 is: 100,771,511.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,274,242.80 : 118,911,364.20 = 67,181,007.60 : x
  2. Step 2: Convert to fraction form
    79,274,242.80/118,911,364.20 = 67,181,007.60/x
  3. Step 3: Cross multiply
    79,274,242.80x = 118,911,364.20 × 67,181,007.60
  4. Step 4: Simplify right side
    79,274,242.80x = 7,988,585,262,046,567
  5. Step 5: Solve for x
    x = 7,988,585,262,046,567/79,274,242.80
  6. Step 6: Final answer
    x = 100,771,511.40

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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.