Home / 100,236,700.80-150,355,051.20-70,003,612.80

Finding the Fourth Proportional to 100,236,700.80, 150,355,051.20 and 70,003,612.80

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Solution

The fourth proportional to 100,236,700.80, 150,355,051.20 and 70,003,612.80 is: 105,005,419.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,236,700.80 : 150,355,051.20 = 70,003,612.80 : x
  2. Step 2: Convert to fraction form
    100,236,700.80/150,355,051.20 = 70,003,612.80/x
  3. Step 3: Cross multiply
    100,236,700.80x = 150,355,051.20 × 70,003,612.80
  4. Step 4: Simplify right side
    100,236,700.80x = 10,525,396,786,728,974
  5. Step 5: Solve for x
    x = 10,525,396,786,728,974/100,236,700.80
  6. Step 6: Final answer
    x = 105,005,419.20

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Similar ratio
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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.