Home / 430,526,611.20-645,991,473.60-188,158,022.40

Finding the Fourth Proportional to 430,526,611.20, 645,991,473.60 and 188,158,022.40

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Solution

The fourth proportional to 430,526,611.20, 645,991,473.60 and 188,158,022.40 is: 282,325,122.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,526,611.20 : 645,991,473.60 = 188,158,022.40 : x
  2. Step 2: Convert to fraction form
    430,526,611.20/645,991,473.60 = 188,158,022.40/x
  3. Step 3: Cross multiply
    430,526,611.20x = 645,991,473.60 × 188,158,022.40
  4. Step 4: Simplify right side
    430,526,611.20x = 121,548,478,159,837,824
  5. Step 5: Solve for x
    x = 121,548,478,159,837,824/430,526,611.20
  6. Step 6: Final answer
    x = 282,325,122.30

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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.