Home / 109,036,269.20-163,554,403.80-72,756,563.60

Finding the Fourth Proportional to 109,036,269.20, 163,554,403.80 and 72,756,563.60

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Solution

The fourth proportional to 109,036,269.20, 163,554,403.80 and 72,756,563.60 is: 109,134,845.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,036,269.20 : 163,554,403.80 = 72,756,563.60 : x
  2. Step 2: Convert to fraction form
    109,036,269.20/163,554,403.80 = 72,756,563.60/x
  3. Step 3: Cross multiply
    109,036,269.20x = 163,554,403.80 × 72,756,563.60
  4. Step 4: Simplify right side
    109,036,269.20x = 11,899,656,382,134,782
  5. Step 5: Solve for x
    x = 11,899,656,382,134,782/109,036,269.20
  6. Step 6: Final answer
    x = 109,134,845.40

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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.