Home / 21,041,429.20-31,508,999.70-16,789,901.20

Finding the Fourth Proportional to 21,041,429.20, 31,508,999.70 and 16,789,901.20

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Solution

The fourth proportional to 21,041,429.20, 31,508,999.70 and 16,789,901.20 is: 25,142,445.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,041,429.20 : 31,508,999.70 = 16,789,901.20 : x
  2. Step 2: Convert to fraction form
    21,041,429.20/31,508,999.70 = 16,789,901.20/x
  3. Step 3: Cross multiply
    21,041,429.20x = 31,508,999.70 × 16,789,901.20
  4. Step 4: Simplify right side
    21,041,429.20x = 529,032,991,873,829.62
  5. Step 5: Solve for x
    x = 529,032,991,873,829.62/21,041,429.20
  6. Step 6: Final answer
    x = 25,142,445.74

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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.