Home / 168,154,709.40-252,232,064.10-90,670,611.60

Finding the Fourth Proportional to 168,154,709.40, 252,232,064.10 and 90,670,611.60

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Solution

The fourth proportional to 168,154,709.40, 252,232,064.10 and 90,670,611.60 is: 136,005,917.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,154,709.40 : 252,232,064.10 = 90,670,611.60 : x
  2. Step 2: Convert to fraction form
    168,154,709.40/252,232,064.10 = 90,670,611.60/x
  3. Step 3: Cross multiply
    168,154,709.40x = 252,232,064.10 × 90,670,611.60
  4. Step 4: Simplify right side
    168,154,709.40x = 22,870,035,517,077,400
  5. Step 5: Solve for x
    x = 22,870,035,517,077,400/168,154,709.40
  6. Step 6: Final answer
    x = 136,005,917.40

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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.