Home / 21,558,643.20-32,337,964.80-19,999,749.60

Finding the Fourth Proportional to 21,558,643.20, 32,337,964.80 and 19,999,749.60

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Solution

The fourth proportional to 21,558,643.20, 32,337,964.80 and 19,999,749.60 is: 29,999,624.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,558,643.20 : 32,337,964.80 = 19,999,749.60 : x
  2. Step 2: Convert to fraction form
    21,558,643.20/32,337,964.80 = 19,999,749.60/x
  3. Step 3: Cross multiply
    21,558,643.20x = 32,337,964.80 × 19,999,749.60
  4. Step 4: Simplify right side
    21,558,643.20x = 646,751,198,573,614.12
  5. Step 5: Solve for x
    x = 646,751,198,573,614.12/21,558,643.20
  6. Step 6: Final answer
    x = 29,999,624.40

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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.