Home / 21,666,969.60-32,508,748.80-21,326,899.20

Finding the Fourth Proportional to 21,666,969.60, 32,508,748.80 and 21,326,899.20

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Solution

The fourth proportional to 21,666,969.60, 32,508,748.80 and 21,326,899.20 is: 31,998,513.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,666,969.60 : 32,508,748.80 = 21,326,899.20 : x
  2. Step 2: Convert to fraction form
    21,666,969.60/32,508,748.80 = 21,326,899.20/x
  3. Step 3: Cross multiply
    21,666,969.60x = 32,508,748.80 × 21,326,899.20
  4. Step 4: Simplify right side
    21,666,969.60x = 693,310,808,775,721
  5. Step 5: Solve for x
    x = 693,310,808,775,721/21,666,969.60
  6. Step 6: Final answer
    x = 31,998,513.02

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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.