Home / 210,189,523.87-290,070,355.10-120,881,537.81

Finding the Fourth Proportional to 210,189,523.87, 290,070,355.10 and 120,881,537.81

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Solution

The fourth proportional to 210,189,523.87, 290,070,355.10 and 120,881,537.81 is: 166,821,590.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,189,523.87 : 290,070,355.10 = 120,881,537.81 : x
  2. Step 2: Convert to fraction form
    210,189,523.87/290,070,355.10 = 120,881,537.81/x
  3. Step 3: Cross multiply
    210,189,523.87x = 290,070,355.10 × 120,881,537.81
  4. Step 4: Simplify right side
    210,189,523.87x = 35,064,150,595,526,024
  5. Step 5: Solve for x
    x = 35,064,150,595,526,024/210,189,523.87
  6. Step 6: Final answer
    x = 166,821,590.10

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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.