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Finding the Fourth Proportional to 405,648,002.80, 608,472,004.20 and 244,404,866.80

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Solution

The fourth proportional to 405,648,002.80, 608,472,004.20 and 244,404,866.80 is: 366,607,300.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,648,002.80 : 608,472,004.20 = 244,404,866.80 : x
  2. Step 2: Convert to fraction form
    405,648,002.80/608,472,004.20 = 244,404,866.80/x
  3. Step 3: Cross multiply
    405,648,002.80x = 608,472,004.20 × 244,404,866.80
  4. Step 4: Simplify right side
    405,648,002.80x = 148,713,519,138,030,048
  5. Step 5: Solve for x
    x = 148,713,519,138,030,048/405,648,002.80
  6. Step 6: Final answer
    x = 366,607,300.20

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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.