Home / 190,356,489.93-285,535,720.22-86,653,171.37

Finding the Fourth Proportional to 190,356,489.93, 285,535,720.22 and 86,653,171.37

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Solution

The fourth proportional to 190,356,489.93, 285,535,720.22 and 86,653,171.37 is: 129,980,205.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,356,489.93 : 285,535,720.22 = 86,653,171.37 : x
  2. Step 2: Convert to fraction form
    190,356,489.93/285,535,720.22 = 86,653,171.37/x
  3. Step 3: Cross multiply
    190,356,489.93x = 285,535,720.22 × 86,653,171.37
  4. Step 4: Simplify right side
    190,356,489.93x = 24,742,575,694,619,084
  5. Step 5: Solve for x
    x = 24,742,575,694,619,084/190,356,489.93
  6. Step 6: Final answer
    x = 129,980,205.58

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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.