Home / 879,541,409.80-1,319,461,413.90-266,120,763.40

Finding the Fourth Proportional to 879,541,409.80, 1,319,461,413.90 and 266,120,763.40

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Solution

The fourth proportional to 879,541,409.80, 1,319,461,413.90 and 266,120,763.40 is: 399,226,318.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,541,409.80 : 1,319,461,413.90 = 266,120,763.40 : x
  2. Step 2: Convert to fraction form
    879,541,409.80/1,319,461,413.90 = 266,120,763.40/x
  3. Step 3: Cross multiply
    879,541,409.80x = 1,319,461,413.90 × 266,120,763.40
  4. Step 4: Simplify right side
    879,541,409.80x = 351,136,078,743,911,424
  5. Step 5: Solve for x
    x = 351,136,078,743,911,424/879,541,409.80
  6. Step 6: Final answer
    x = 399,226,318.21

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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.