Home / 190,356,490.93-285,535,721.72-86,653,172.37

Finding the Fourth Proportional to 190,356,490.93, 285,535,721.72 and 86,653,172.37

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Solution

The fourth proportional to 190,356,490.93, 285,535,721.72 and 86,653,172.37 is: 129,980,207.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,356,490.93 : 285,535,721.72 = 86,653,172.37 : x
  2. Step 2: Convert to fraction form
    190,356,490.93/285,535,721.72 = 86,653,172.37/x
  3. Step 3: Cross multiply
    190,356,490.93x = 285,535,721.72 × 86,653,172.37
  4. Step 4: Simplify right side
    190,356,490.93x = 24,742,576,111,995,516
  5. Step 5: Solve for x
    x = 24,742,576,111,995,516/190,356,490.93
  6. Step 6: Final answer
    x = 129,980,207.09

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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.