Home / 320,997,792.42-442,977,017.76-195,549,981.66

Finding the Fourth Proportional to 320,997,792.42, 442,977,017.76 and 195,549,981.66

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Solution

The fourth proportional to 320,997,792.42, 442,977,017.76 and 195,549,981.66 is: 269,859,013.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,997,792.42 : 442,977,017.76 = 195,549,981.66 : x
  2. Step 2: Convert to fraction form
    320,997,792.42/442,977,017.76 = 195,549,981.66/x
  3. Step 3: Cross multiply
    320,997,792.42x = 442,977,017.76 × 195,549,981.66
  4. Step 4: Simplify right side
    320,997,792.42x = 86,624,147,698,769,488
  5. Step 5: Solve for x
    x = 86,624,147,698,769,488/320,997,792.42
  6. Step 6: Final answer
    x = 269,859,013.81

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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.