Home / 199,709,129.12-275,598,971.58-111,603,126.91

Finding the Fourth Proportional to 199,709,129.12, 275,598,971.58 and 111,603,126.91

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Solution

The fourth proportional to 199,709,129.12, 275,598,971.58 and 111,603,126.91 is: 154,012,523.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,709,129.12 : 275,598,971.58 = 111,603,126.91 : x
  2. Step 2: Convert to fraction form
    199,709,129.12/275,598,971.58 = 111,603,126.91/x
  3. Step 3: Cross multiply
    199,709,129.12x = 275,598,971.58 × 111,603,126.91
  4. Step 4: Simplify right side
    199,709,129.12x = 30,757,707,000,195,224
  5. Step 5: Solve for x
    x = 30,757,707,000,195,224/199,709,129.12
  6. Step 6: Final answer
    x = 154,012,523.80

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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.