Home / 587,190,885.21-810,446,718.92-372,470,646.87

Finding the Fourth Proportional to 587,190,885.21, 810,446,718.92 and 372,470,646.87

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Solution

The fourth proportional to 587,190,885.21, 810,446,718.92 and 372,470,646.87 is: 514,087,703.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,190,885.21 : 810,446,718.92 = 372,470,646.87 : x
  2. Step 2: Convert to fraction form
    587,190,885.21/810,446,718.92 = 372,470,646.87/x
  3. Step 3: Cross multiply
    587,190,885.21x = 810,446,718.92 × 372,470,646.87
  4. Step 4: Simplify right side
    587,190,885.21x = 301,867,613,647,939,136
  5. Step 5: Solve for x
    x = 301,867,613,647,939,136/587,190,885.21
  6. Step 6: Final answer
    x = 514,087,703.42

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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.