Home / 797,147,788.40-1,195,910,639.40-409,030,521.20

Finding the Fourth Proportional to 797,147,788.40, 1,195,910,639.40 and 409,030,521.20

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Solution

The fourth proportional to 797,147,788.40, 1,195,910,639.40 and 409,030,521.20 is: 613,642,738.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    797,147,788.40 : 1,195,910,639.40 = 409,030,521.20 : x
  2. Step 2: Convert to fraction form
    797,147,788.40/1,195,910,639.40 = 409,030,521.20/x
  3. Step 3: Cross multiply
    797,147,788.40x = 1,195,910,639.40 × 409,030,521.20
  4. Step 4: Simplify right side
    797,147,788.40x = 489,163,952,142,407,296
  5. Step 5: Solve for x
    x = 489,163,952,142,407,296/797,147,788.40
  6. Step 6: Final answer
    x = 613,642,738.85

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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.