Home / 380,202,336,002.88-570,303,504,004.30-318,834,930,545.25

Finding the Fourth Proportional to 380,202,336,002.88, 570,303,504,004.30 and 318,834,930,545.25

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Solution

The fourth proportional to 380,202,336,002.88, 570,303,504,004.30 and 318,834,930,545.25 is: 478,252,395,817.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,202,336,002.88 : 570,303,504,004.30 = 318,834,930,545.25 : x
  2. Step 2: Convert to fraction form
    380,202,336,002.88/570,303,504,004.30 = 318,834,930,545.25/x
  3. Step 3: Cross multiply
    380,202,336,002.88x = 570,303,504,004.30 × 318,834,930,545.25
  4. Step 4: Simplify right side
    380,202,336,002.88x = 181,832,678,088,923,710,226,432
  5. Step 5: Solve for x
    x = 181,832,678,088,923,710,226,432/380,202,336,002.88
  6. Step 6: Final answer
    x = 478,252,395,817.86

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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.