Home / 693,041,771.39-956,444,568.26-391,522,506.66

Finding the Fourth Proportional to 693,041,771.39, 956,444,568.26 and 391,522,506.66

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Solution

The fourth proportional to 693,041,771.39, 956,444,568.26 and 391,522,506.66 is: 540,327,567.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,041,771.39 : 956,444,568.26 = 391,522,506.66 : x
  2. Step 2: Convert to fraction form
    693,041,771.39/956,444,568.26 = 391,522,506.66/x
  3. Step 3: Cross multiply
    693,041,771.39x = 956,444,568.26 × 391,522,506.66
  4. Step 4: Simplify right side
    693,041,771.39x = 374,469,574,844,539,072
  5. Step 5: Solve for x
    x = 374,469,574,844,539,072/693,041,771.39
  6. Step 6: Final answer
    x = 540,327,567.99

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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.