Home / 20,219,448,396.80-30,329,172,595.20-9,199,487,820.80

Finding the Fourth Proportional to 20,219,448,396.80, 30,329,172,595.20 and 9,199,487,820.80

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Solution

The fourth proportional to 20,219,448,396.80, 30,329,172,595.20 and 9,199,487,820.80 is: 13,799,231,731.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,219,448,396.80 : 30,329,172,595.20 = 9,199,487,820.80 : x
  2. Step 2: Convert to fraction form
    20,219,448,396.80/30,329,172,595.20 = 9,199,487,820.80/x
  3. Step 3: Cross multiply
    20,219,448,396.80x = 30,329,172,595.20 × 9,199,487,820.80
  4. Step 4: Simplify right side
    20,219,448,396.80x = 279,012,853,904,483,516,416
  5. Step 5: Solve for x
    x = 279,012,853,904,483,516,416/20,219,448,396.80
  6. Step 6: Final answer
    x = 13,799,231,731.20

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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.