Home / 20,857,860,232.80-31,286,790,349.20-9,837,899,656.80

Finding the Fourth Proportional to 20,857,860,232.80, 31,286,790,349.20 and 9,837,899,656.80

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Solution

The fourth proportional to 20,857,860,232.80, 31,286,790,349.20 and 9,837,899,656.80 is: 14,756,849,485.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,857,860,232.80 : 31,286,790,349.20 = 9,837,899,656.80 : x
  2. Step 2: Convert to fraction form
    20,857,860,232.80/31,286,790,349.20 = 9,837,899,656.80/x
  3. Step 3: Cross multiply
    20,857,860,232.80x = 31,286,790,349.20 × 9,837,899,656.80
  4. Step 4: Simplify right side
    20,857,860,232.80x = 307,796,304,038,768,214,016
  5. Step 5: Solve for x
    x = 307,796,304,038,768,214,016/20,857,860,232.80
  6. Step 6: Final answer
    x = 14,756,849,485.20

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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.