Home / 693,041,764.64-956,444,558.93-391,522,499.90

Finding the Fourth Proportional to 693,041,764.64, 956,444,558.93 and 391,522,499.90

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Solution

The fourth proportional to 693,041,764.64, 956,444,558.93 and 391,522,499.90 is: 540,327,558.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,041,764.64 : 956,444,558.93 = 391,522,499.90 : x
  2. Step 2: Convert to fraction form
    693,041,764.64/956,444,558.93 = 391,522,499.90/x
  3. Step 3: Cross multiply
    693,041,764.64x = 956,444,558.93 × 391,522,499.90
  4. Step 4: Simplify right side
    693,041,764.64x = 374,469,564,725,521,920
  5. Step 5: Solve for x
    x = 374,469,564,725,521,920/693,041,764.64
  6. Step 6: Final answer
    x = 540,327,558.64

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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.