Home / 53,242,056.50-79,871,909.30-18,689,493.11

Finding the Fourth Proportional to 53,242,056.50, 79,871,909.30 and 18,689,493.11

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Solution

The fourth proportional to 53,242,056.50, 79,871,909.30 and 18,689,493.11 is: 28,037,337.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,242,056.50 : 79,871,909.30 = 18,689,493.11 : x
  2. Step 2: Convert to fraction form
    53,242,056.50/79,871,909.30 = 18,689,493.11/x
  3. Step 3: Cross multiply
    53,242,056.50x = 79,871,909.30 × 18,689,493.11
  4. Step 4: Simplify right side
    53,242,056.50x = 1,492,765,498,451,447.50
  5. Step 5: Solve for x
    x = 1,492,765,498,451,447.50/53,242,056.50
  6. Step 6: Final answer
    x = 28,037,337.33

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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.