Home / 699,407,829.05-965,267,442.03-398,066,411.41

Finding the Fourth Proportional to 699,407,829.05, 965,267,442.03 and 398,066,411.41

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Solution

The fourth proportional to 699,407,829.05, 965,267,442.03 and 398,066,411.41 is: 549,379,819.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,407,829.05 : 965,267,442.03 = 398,066,411.41 : x
  2. Step 2: Convert to fraction form
    699,407,829.05/965,267,442.03 = 398,066,411.41/x
  3. Step 3: Cross multiply
    699,407,829.05x = 965,267,442.03 × 398,066,411.41
  4. Step 4: Simplify right side
    699,407,829.05x = 384,240,546,699,792,320
  5. Step 5: Solve for x
    x = 384,240,546,699,792,320/699,407,829.05
  6. Step 6: Final answer
    x = 549,379,819.24

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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.