Home / 190,356,471.45-285,535,692.48-86,653,152.87

Finding the Fourth Proportional to 190,356,471.45, 285,535,692.48 and 86,653,152.87

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Solution

The fourth proportional to 190,356,471.45, 285,535,692.48 and 86,653,152.87 is: 129,980,177.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,356,471.45 : 285,535,692.48 = 86,653,152.87 : x
  2. Step 2: Convert to fraction form
    190,356,471.45/285,535,692.48 = 86,653,152.87/x
  3. Step 3: Cross multiply
    190,356,471.45x = 285,535,692.48 × 86,653,152.87
  4. Step 4: Simplify right side
    190,356,471.45x = 24,742,568,010,310,752
  5. Step 5: Solve for x
    x = 24,742,568,010,310,752/190,356,471.45
  6. Step 6: Final answer
    x = 129,980,177.83

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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.