Home / 190,356,474.96-285,535,697.72-86,653,156.36

Finding the Fourth Proportional to 190,356,474.96, 285,535,697.72 and 86,653,156.36

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Solution

The fourth proportional to 190,356,474.96, 285,535,697.72 and 86,653,156.36 is: 129,980,183.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,356,474.96 : 285,535,697.72 = 86,653,156.36 : x
  2. Step 2: Convert to fraction form
    190,356,474.96/285,535,697.72 = 86,653,156.36/x
  3. Step 3: Cross multiply
    190,356,474.96x = 285,535,697.72 × 86,653,156.36
  4. Step 4: Simplify right side
    190,356,474.96x = 24,742,569,460,892,856
  5. Step 5: Solve for x
    x = 24,742,569,460,892,856/190,356,474.96
  6. Step 6: Final answer
    x = 129,980,183.05

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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.