Home / 79,131,985.20-118,697,977.80-58,724,650.80

Finding the Fourth Proportional to 79,131,985.20, 118,697,977.80 and 58,724,650.80

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Solution

The fourth proportional to 79,131,985.20, 118,697,977.80 and 58,724,650.80 is: 88,086,976.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,131,985.20 : 118,697,977.80 = 58,724,650.80 : x
  2. Step 2: Convert to fraction form
    79,131,985.20/118,697,977.80 = 58,724,650.80/x
  3. Step 3: Cross multiply
    79,131,985.20x = 118,697,977.80 × 58,724,650.80
  4. Step 4: Simplify right side
    79,131,985.20x = 6,970,497,296,971,152
  5. Step 5: Solve for x
    x = 6,970,497,296,971,152/79,131,985.20
  6. Step 6: Final answer
    x = 88,086,976.20

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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.