Home / 21,303,089.10-31,954,633.65-13,650,338.70

Finding the Fourth Proportional to 21,303,089.10, 31,954,633.65 and 13,650,338.70

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Solution

The fourth proportional to 21,303,089.10, 31,954,633.65 and 13,650,338.70 is: 20,475,508.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,303,089.10 : 31,954,633.65 = 13,650,338.70 : x
  2. Step 2: Convert to fraction form
    21,303,089.10/31,954,633.65 = 13,650,338.70/x
  3. Step 3: Cross multiply
    21,303,089.10x = 31,954,633.65 × 13,650,338.70
  4. Step 4: Simplify right side
    21,303,089.10x = 436,191,572,356,917.19
  5. Step 5: Solve for x
    x = 436,191,572,356,917.19/21,303,089.10
  6. Step 6: Final answer
    x = 20,475,508.05

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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.