Home / 699,408,001.86-965,267,680.88-398,066,584.30

Finding the Fourth Proportional to 699,408,001.86, 965,267,680.88 and 398,066,584.30

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Solution

The fourth proportional to 699,408,001.86, 965,267,680.88 and 398,066,584.30 is: 549,380,058.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,408,001.86 : 965,267,680.88 = 398,066,584.30 : x
  2. Step 2: Convert to fraction form
    699,408,001.86/965,267,680.88 = 398,066,584.30/x
  3. Step 3: Cross multiply
    699,408,001.86x = 965,267,680.88 × 398,066,584.30
  4. Step 4: Simplify right side
    699,408,001.86x = 384,240,808,663,084,032
  5. Step 5: Solve for x
    x = 384,240,808,663,084,032/699,408,001.86
  6. Step 6: Final answer
    x = 549,380,058.05

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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.