Home / 21,802,205.40-32,703,308.10-19,782,729.60

Finding the Fourth Proportional to 21,802,205.40, 32,703,308.10 and 19,782,729.60

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Solution

The fourth proportional to 21,802,205.40, 32,703,308.10 and 19,782,729.60 is: 29,674,094.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,802,205.40 : 32,703,308.10 = 19,782,729.60 : x
  2. Step 2: Convert to fraction form
    21,802,205.40/32,703,308.10 = 19,782,729.60/x
  3. Step 3: Cross multiply
    21,802,205.40x = 32,703,308.10 × 19,782,729.60
  4. Step 4: Simplify right side
    21,802,205.40x = 646,960,701,167,789.88
  5. Step 5: Solve for x
    x = 646,960,701,167,789.88/21,802,205.40
  6. Step 6: Final answer
    x = 29,674,094.40

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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.