Home / 763,938,269.37-1,145,792,276.73-489,507,223.77

Finding the Fourth Proportional to 763,938,269.37, 1,145,792,276.73 and 489,507,223.77

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Solution

The fourth proportional to 763,938,269.37, 1,145,792,276.73 and 489,507,223.77 is: 734,187,065.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,938,269.37 : 1,145,792,276.73 = 489,507,223.77 : x
  2. Step 2: Convert to fraction form
    763,938,269.37/1,145,792,276.73 = 489,507,223.77/x
  3. Step 3: Cross multiply
    763,938,269.37x = 1,145,792,276.73 × 489,507,223.77
  4. Step 4: Simplify right side
    763,938,269.37x = 560,873,596,399,209,856
  5. Step 5: Solve for x
    x = 560,873,596,399,209,856/763,938,269.37
  6. Step 6: Final answer
    x = 734,187,065.75

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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.