Home / 150,428,994,007.53-207,593,657,799.21-81,840,797,048.38

Finding the Fourth Proportional to 150,428,994,007.53, 207,593,657,799.21 and 81,840,797,048.38

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Solution

The fourth proportional to 150,428,994,007.53, 207,593,657,799.21 and 81,840,797,048.38 is: 112,941,195,469.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,428,994,007.53 : 207,593,657,799.21 = 81,840,797,048.38 : x
  2. Step 2: Convert to fraction form
    150,428,994,007.53/207,593,657,799.21 = 81,840,797,048.38/x
  3. Step 3: Cross multiply
    150,428,994,007.53x = 207,593,657,799.21 × 81,840,797,048.38
  4. Step 4: Simplify right side
    150,428,994,007.53x = 16,989,630,416,475,993,931,776
  5. Step 5: Solve for x
    x = 16,989,630,416,475,993,931,776/150,428,994,007.53
  6. Step 6: Final answer
    x = 112,941,195,469.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.