Home / 830,388,619.20-1,244,732,623.20-485,164,545.60

Finding the Fourth Proportional to 830,388,619.20, 1,244,732,623.20 and 485,164,545.60

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Solution

The fourth proportional to 830,388,619.20, 1,244,732,623.20 and 485,164,545.60 is: 727,250,017.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,388,619.20 : 1,244,732,623.20 = 485,164,545.60 : x
  2. Step 2: Convert to fraction form
    830,388,619.20/1,244,732,623.20 = 485,164,545.60/x
  3. Step 3: Cross multiply
    830,388,619.20x = 1,244,732,623.20 × 485,164,545.60
  4. Step 4: Simplify right side
    830,388,619.20x = 603,900,137,528,324,096
  5. Step 5: Solve for x
    x = 603,900,137,528,324,096/830,388,619.20
  6. Step 6: Final answer
    x = 727,250,017.12

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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.