Home / 393,604,779.79-590,409,376.78-131,288,610.59

Finding the Fourth Proportional to 393,604,779.79, 590,409,376.78 and 131,288,610.59

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Solution

The fourth proportional to 393,604,779.79, 590,409,376.78 and 131,288,610.59 is: 196,933,652.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,604,779.79 : 590,409,376.78 = 131,288,610.59 : x
  2. Step 2: Convert to fraction form
    393,604,779.79/590,409,376.78 = 131,288,610.59/x
  3. Step 3: Cross multiply
    393,604,779.79x = 590,409,376.78 × 131,288,610.59
  4. Step 4: Simplify right side
    393,604,779.79x = 77,514,026,756,754,000
  5. Step 5: Solve for x
    x = 77,514,026,756,754,000/393,604,779.79
  6. Step 6: Final answer
    x = 196,933,652.07

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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.