Home / 409,345,172.40-613,950,501.96-146,975,409.84

Finding the Fourth Proportional to 409,345,172.40, 613,950,501.96 and 146,975,409.84

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Solution

The fourth proportional to 409,345,172.40, 613,950,501.96 and 146,975,409.84 is: 220,438,966.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,345,172.40 : 613,950,501.96 = 146,975,409.84 : x
  2. Step 2: Convert to fraction form
    409,345,172.40/613,950,501.96 = 146,975,409.84/x
  3. Step 3: Cross multiply
    409,345,172.40x = 613,950,501.96 × 146,975,409.84
  4. Step 4: Simplify right side
    409,345,172.40x = 90,235,626,647,044,736
  5. Step 5: Solve for x
    x = 90,235,626,647,044,736/409,345,172.40
  6. Step 6: Final answer
    x = 220,438,966.26

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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.