Home / 290,567,357.10-435,852,610.29-86,097,203.82

Finding the Fourth Proportional to 290,567,357.10, 435,852,610.29 and 86,097,203.82

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Solution

The fourth proportional to 290,567,357.10, 435,852,610.29 and 86,097,203.82 is: 129,146,272.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,567,357.10 : 435,852,610.29 = 86,097,203.82 : x
  2. Step 2: Convert to fraction form
    290,567,357.10/435,852,610.29 = 86,097,203.82/x
  3. Step 3: Cross multiply
    290,567,357.10x = 435,852,610.29 × 86,097,203.82
  4. Step 4: Simplify right side
    290,567,357.10x = 37,525,691,023,617,160
  5. Step 5: Solve for x
    x = 37,525,691,023,617,160/290,567,357.10
  6. Step 6: Final answer
    x = 129,146,272.31

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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.