Home / 393,604,774.23-590,409,368.45-131,288,605.04

Finding the Fourth Proportional to 393,604,774.23, 590,409,368.45 and 131,288,605.04

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Solution

The fourth proportional to 393,604,774.23, 590,409,368.45 and 131,288,605.04 is: 196,933,643.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,604,774.23 : 590,409,368.45 = 131,288,605.04 : x
  2. Step 2: Convert to fraction form
    393,604,774.23/590,409,368.45 = 131,288,605.04/x
  3. Step 3: Cross multiply
    393,604,774.23x = 590,409,368.45 × 131,288,605.04
  4. Step 4: Simplify right side
    393,604,774.23x = 77,514,022,387,659,808
  5. Step 5: Solve for x
    x = 77,514,022,387,659,808/393,604,774.23
  6. Step 6: Final answer
    x = 196,933,643.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.