Home / 1,327,661,668.80-1,991,492,503.20-715,441,636.80

Finding the Fourth Proportional to 1,327,661,668.80, 1,991,492,503.20 and 715,441,636.80

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Solution

The fourth proportional to 1,327,661,668.80, 1,991,492,503.20 and 715,441,636.80 is: 1,073,162,455.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327,661,668.80 : 1,991,492,503.20 = 715,441,636.80 : x
  2. Step 2: Convert to fraction form
    1,327,661,668.80/1,991,492,503.20 = 715,441,636.80/x
  3. Step 3: Cross multiply
    1,327,661,668.80x = 1,991,492,503.20 × 715,441,636.80
  4. Step 4: Simplify right side
    1,327,661,668.80x = 1,424,796,656,164,337,152
  5. Step 5: Solve for x
    x = 1,424,796,656,164,337,152/1,327,661,668.80
  6. Step 6: Final answer
    x = 1,073,162,455.20

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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.