Home / 20,857,860,222.80-31,286,790,334.20-9,837,899,646.80

Finding the Fourth Proportional to 20,857,860,222.80, 31,286,790,334.20 and 9,837,899,646.80

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Solution

The fourth proportional to 20,857,860,222.80, 31,286,790,334.20 and 9,837,899,646.80 is: 14,756,849,470.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,857,860,222.80 : 31,286,790,334.20 = 9,837,899,646.80 : x
  2. Step 2: Convert to fraction form
    20,857,860,222.80/31,286,790,334.20 = 9,837,899,646.80/x
  3. Step 3: Cross multiply
    20,857,860,222.80x = 31,286,790,334.20 × 9,837,899,646.80
  4. Step 4: Simplify right side
    20,857,860,222.80x = 307,796,303,578,331,807,744
  5. Step 5: Solve for x
    x = 307,796,303,578,331,807,744/20,857,860,222.80
  6. Step 6: Final answer
    x = 14,756,849,470.20

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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.