Home / 805,807,351.60-1,208,711,027.40-396,778,865.20

Finding the Fourth Proportional to 805,807,351.60, 1,208,711,027.40 and 396,778,865.20

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Solution

The fourth proportional to 805,807,351.60, 1,208,711,027.40 and 396,778,865.20 is: 595,168,297.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,807,351.60 : 1,208,711,027.40 = 396,778,865.20 : x
  2. Step 2: Convert to fraction form
    805,807,351.60/1,208,711,027.40 = 396,778,865.20/x
  3. Step 3: Cross multiply
    805,807,351.60x = 1,208,711,027.40 × 396,778,865.20
  4. Step 4: Simplify right side
    805,807,351.60x = 479,590,989,806,498,112
  5. Step 5: Solve for x
    x = 479,590,989,806,498,112/805,807,351.60
  6. Step 6: Final answer
    x = 595,168,297.80

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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.