Home / 860,920,942.20-1,291,381,413.30-369,550,593.60

Finding the Fourth Proportional to 860,920,942.20, 1,291,381,413.30 and 369,550,593.60

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Solution

The fourth proportional to 860,920,942.20, 1,291,381,413.30 and 369,550,593.60 is: 554,325,890.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,920,942.20 : 1,291,381,413.30 = 369,550,593.60 : x
  2. Step 2: Convert to fraction form
    860,920,942.20/1,291,381,413.30 = 369,550,593.60/x
  3. Step 3: Cross multiply
    860,920,942.20x = 1,291,381,413.30 × 369,550,593.60
  4. Step 4: Simplify right side
    860,920,942.20x = 477,230,767,849,021,952
  5. Step 5: Solve for x
    x = 477,230,767,849,021,952/860,920,942.20
  6. Step 6: Final answer
    x = 554,325,890.40

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1.5x scale

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.