Home / 231,180,779.07-319,075,822.76-137,147,120.51

Finding the Fourth Proportional to 231,180,779.07, 319,075,822.76 and 137,147,120.51

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Solution

The fourth proportional to 231,180,779.07, 319,075,822.76 and 137,147,120.51 is: 189,290,521.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,180,779.07 : 319,075,822.76 = 137,147,120.51 : x
  2. Step 2: Convert to fraction form
    231,180,779.07/319,075,822.76 = 137,147,120.51/x
  3. Step 3: Cross multiply
    231,180,779.07x = 319,075,822.76 × 137,147,120.51
  4. Step 4: Simplify right side
    231,180,779.07x = 43,760,330,313,612,000
  5. Step 5: Solve for x
    x = 43,760,330,313,612,000/231,180,779.07
  6. Step 6: Final answer
    x = 189,290,521.86

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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.