Home / 20,439,363.24-30,671,808.78-13,620,720.96

Finding the Fourth Proportional to 20,439,363.24, 30,671,808.78 and 13,620,720.96

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Solution

The fourth proportional to 20,439,363.24, 30,671,808.78 and 13,620,720.96 is: 20,439,587.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,439,363.24 : 30,671,808.78 = 13,620,720.96 : x
  2. Step 2: Convert to fraction form
    20,439,363.24/30,671,808.78 = 13,620,720.96/x
  3. Step 3: Cross multiply
    20,439,363.24x = 30,671,808.78 × 13,620,720.96
  4. Step 4: Simplify right side
    20,439,363.24x = 417,772,148,730,858.06
  5. Step 5: Solve for x
    x = 417,772,148,730,858.06/20,439,363.24
  6. Step 6: Final answer
    x = 20,439,587.27

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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.