Home / 3,157,929,518.28-4,739,615,255.34-2,189,261,378.76

Finding the Fourth Proportional to 3,157,929,518.28, 4,739,615,255.34 and 2,189,261,378.76

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Solution

The fourth proportional to 3,157,929,518.28, 4,739,615,255.34 and 2,189,261,378.76 is: 3,285,778,409.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,157,929,518.28 : 4,739,615,255.34 = 2,189,261,378.76 : x
  2. Step 2: Convert to fraction form
    3,157,929,518.28/4,739,615,255.34 = 2,189,261,378.76/x
  3. Step 3: Cross multiply
    3,157,929,518.28x = 4,739,615,255.34 × 2,189,261,378.76
  4. Step 4: Simplify right side
    3,157,929,518.28x = 10,376,256,628,697,579,520
  5. Step 5: Solve for x
    x = 10,376,256,628,697,579,520/3,157,929,518.28
  6. Step 6: Final answer
    x = 3,285,778,409.12

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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.