Home / 356,300,972.81-534,450,390.03-90,406,169.89

Finding the Fourth Proportional to 356,300,972.81, 534,450,390.03 and 90,406,169.89

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Solution

The fourth proportional to 356,300,972.81, 534,450,390.03 and 90,406,169.89 is: 135,608,983.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,300,972.81 : 534,450,390.03 = 90,406,169.89 : x
  2. Step 2: Convert to fraction form
    356,300,972.81/534,450,390.03 = 90,406,169.89/x
  3. Step 3: Cross multiply
    356,300,972.81x = 534,450,390.03 × 90,406,169.89
  4. Step 4: Simplify right side
    356,300,972.81x = 48,317,612,757,492,816
  5. Step 5: Solve for x
    x = 48,317,612,757,492,816/356,300,972.81
  6. Step 6: Final answer
    x = 135,608,983.54

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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.