Home / 697,040,733.21-1,045,178,199.87-478,745,998.89

Finding the Fourth Proportional to 697,040,733.21, 1,045,178,199.87 and 478,745,998.89

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Solution

The fourth proportional to 697,040,733.21, 1,045,178,199.87 and 478,745,998.89 is: 717,856,012.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,040,733.21 : 1,045,178,199.87 = 478,745,998.89 : x
  2. Step 2: Convert to fraction form
    697,040,733.21/1,045,178,199.87 = 478,745,998.89/x
  3. Step 3: Cross multiply
    697,040,733.21x = 1,045,178,199.87 × 478,745,998.89
  4. Step 4: Simplify right side
    697,040,733.21x = 500,374,881,314,815,232
  5. Step 5: Solve for x
    x = 500,374,881,314,815,232/697,040,733.21
  6. Step 6: Final answer
    x = 717,856,012.53

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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.