Home / 20,155,444,808.80-30,233,167,213.20-18,865,499,720.80

Finding the Fourth Proportional to 20,155,444,808.80, 30,233,167,213.20 and 18,865,499,720.80

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Solution

The fourth proportional to 20,155,444,808.80, 30,233,167,213.20 and 18,865,499,720.80 is: 28,298,249,581.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,155,444,808.80 : 30,233,167,213.20 = 18,865,499,720.80 : x
  2. Step 2: Convert to fraction form
    20,155,444,808.80/30,233,167,213.20 = 18,865,499,720.80/x
  3. Step 3: Cross multiply
    20,155,444,808.80x = 30,233,167,213.20 × 18,865,499,720.80
  4. Step 4: Simplify right side
    20,155,444,808.80x = 570,363,807,619,524,329,472
  5. Step 5: Solve for x
    x = 570,363,807,619,524,329,472/20,155,444,808.80
  6. Step 6: Final answer
    x = 28,298,249,581.20

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1.5x scale

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.