Home / 210,291,982.11-290,201,565.38-117,471,678.03

Finding the Fourth Proportional to 210,291,982.11, 290,201,565.38 and 117,471,678.03

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Solution

The fourth proportional to 210,291,982.11, 290,201,565.38 and 117,471,678.03 is: 162,110,150.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,291,982.11 : 290,201,565.38 = 117,471,678.03 : x
  2. Step 2: Convert to fraction form
    210,291,982.11/290,201,565.38 = 117,471,678.03/x
  3. Step 3: Cross multiply
    210,291,982.11x = 290,201,565.38 × 117,471,678.03
  4. Step 4: Simplify right side
    210,291,982.11x = 34,090,464,851,533,996
  5. Step 5: Solve for x
    x = 34,090,464,851,533,996/210,291,982.11
  6. Step 6: Final answer
    x = 162,110,150.42

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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.