Home / 1,215,262,431.20-1,822,943,413.20-353,619,423.20

Finding the Fourth Proportional to 1,215,262,431.20, 1,822,943,413.20 and 353,619,423.20

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Solution

The fourth proportional to 1,215,262,431.20, 1,822,943,413.20 and 353,619,423.20 is: 530,443,615.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,262,431.20 : 1,822,943,413.20 = 353,619,423.20 : x
  2. Step 2: Convert to fraction form
    1,215,262,431.20/1,822,943,413.20 = 353,619,423.20/x
  3. Step 3: Cross multiply
    1,215,262,431.20x = 1,822,943,413.20 × 353,619,423.20
  4. Step 4: Simplify right side
    1,215,262,431.20x = 644,628,198,302,023,296
  5. Step 5: Solve for x
    x = 644,628,198,302,023,296/1,215,262,431.20
  6. Step 6: Final answer
    x = 530,443,615.92

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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.