Home / 79,119,911.20-118,679,866.80-48,508,909.60

Finding the Fourth Proportional to 79,119,911.20, 118,679,866.80 and 48,508,909.60

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Solution

The fourth proportional to 79,119,911.20, 118,679,866.80 and 48,508,909.60 is: 72,763,364.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,119,911.20 : 118,679,866.80 = 48,508,909.60 : x
  2. Step 2: Convert to fraction form
    79,119,911.20/118,679,866.80 = 48,508,909.60/x
  3. Step 3: Cross multiply
    79,119,911.20x = 118,679,866.80 × 48,508,909.60
  4. Step 4: Simplify right side
    79,119,911.20x = 5,757,030,929,941,241
  5. Step 5: Solve for x
    x = 5,757,030,929,941,241/79,119,911.20
  6. Step 6: Final answer
    x = 72,763,364.40

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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.