Home / 290,926,248.26-436,378,743.41-86,449,009.10

Finding the Fourth Proportional to 290,926,248.26, 436,378,743.41 and 86,449,009.10

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Solution

The fourth proportional to 290,926,248.26, 436,378,743.41 and 86,449,009.10 is: 129,670,355.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,926,248.26 : 436,378,743.41 = 86,449,009.10 : x
  2. Step 2: Convert to fraction form
    290,926,248.26/436,378,743.41 = 86,449,009.10/x
  3. Step 3: Cross multiply
    290,926,248.26x = 436,378,743.41 × 86,449,009.10
  4. Step 4: Simplify right side
    290,926,248.26x = 37,724,509,957,483,512
  5. Step 5: Solve for x
    x = 37,724,509,957,483,512/290,926,248.26
  6. Step 6: Final answer
    x = 129,670,355.23

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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.