Home / 20,689,539.70-30,981,165.45-16,402,582.30

Finding the Fourth Proportional to 20,689,539.70, 30,981,165.45 and 16,402,582.30

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Solution

The fourth proportional to 20,689,539.70, 30,981,165.45 and 16,402,582.30 is: 24,561,741.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,689,539.70 : 30,981,165.45 = 16,402,582.30 : x
  2. Step 2: Convert to fraction form
    20,689,539.70/30,981,165.45 = 16,402,582.30/x
  3. Step 3: Cross multiply
    20,689,539.70x = 30,981,165.45 × 16,402,582.30
  4. Step 4: Simplify right side
    20,689,539.70x = 508,171,116,043,541.56
  5. Step 5: Solve for x
    x = 508,171,116,043,541.56/20,689,539.70
  6. Step 6: Final answer
    x = 24,561,741.03

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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.