Home / 80,411,830,115.20-120,617,745,172.80-53,447,364,080.80

Finding the Fourth Proportional to 80,411,830,115.20, 120,617,745,172.80 and 53,447,364,080.80

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Solution

The fourth proportional to 80,411,830,115.20, 120,617,745,172.80 and 53,447,364,080.80 is: 80,171,046,121.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,411,830,115.20 : 120,617,745,172.80 = 53,447,364,080.80 : x
  2. Step 2: Convert to fraction form
    80,411,830,115.20/120,617,745,172.80 = 53,447,364,080.80/x
  3. Step 3: Cross multiply
    80,411,830,115.20x = 120,617,745,172.80 × 53,447,364,080.80
  4. Step 4: Simplify right side
    80,411,830,115.20x = 6,446,700,540,855,798,726,656
  5. Step 5: Solve for x
    x = 6,446,700,540,855,798,726,656/80,411,830,115.20
  6. Step 6: Final answer
    x = 80,171,046,121.20

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1.5x scale

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.