Home / 1,225,948,074.88-1,691,807,898.44-669,031,121.94

Finding the Fourth Proportional to 1,225,948,074.88, 1,691,807,898.44 and 669,031,121.94

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Solution

The fourth proportional to 1,225,948,074.88, 1,691,807,898.44 and 669,031,121.94 is: 923,262,705.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,948,074.88 : 1,691,807,898.44 = 669,031,121.94 : x
  2. Step 2: Convert to fraction form
    1,225,948,074.88/1,691,807,898.44 = 669,031,121.94/x
  3. Step 3: Cross multiply
    1,225,948,074.88x = 1,691,807,898.44 × 669,031,121.94
  4. Step 4: Simplify right side
    1,225,948,074.88x = 1,131,872,136,400,266,880
  5. Step 5: Solve for x
    x = 1,131,872,136,400,266,880/1,225,948,074.88
  6. Step 6: Final answer
    x = 923,262,705.49

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.