Home / 285,810,946.67-394,425,906.13-160,372,421.20

Finding the Fourth Proportional to 285,810,946.67, 394,425,906.13 and 160,372,421.20

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Solution

The fourth proportional to 285,810,946.67, 394,425,906.13 and 160,372,421.20 is: 221,317,756.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,810,946.67 : 394,425,906.13 = 160,372,421.20 : x
  2. Step 2: Convert to fraction form
    285,810,946.67/394,425,906.13 = 160,372,421.20/x
  3. Step 3: Cross multiply
    285,810,946.67x = 394,425,906.13 × 160,372,421.20
  4. Step 4: Simplify right side
    285,810,946.67x = 63,255,037,550,765,520
  5. Step 5: Solve for x
    x = 63,255,037,550,765,520/285,810,946.67
  6. Step 6: Final answer
    x = 221,317,756.68

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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.