Home / 2,129,353,670.40-3,188,655,734.40-1,398,384,787.20

Finding the Fourth Proportional to 2,129,353,670.40, 3,188,655,734.40 and 1,398,384,787.20

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Solution

The fourth proportional to 2,129,353,670.40, 3,188,655,734.40 and 1,398,384,787.20 is: 2,094,047,472.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,129,353,670.40 : 3,188,655,734.40 = 1,398,384,787.20 : x
  2. Step 2: Convert to fraction form
    2,129,353,670.40/3,188,655,734.40 = 1,398,384,787.20/x
  3. Step 3: Cross multiply
    2,129,353,670.40x = 3,188,655,734.40 × 1,398,384,787.20
  4. Step 4: Simplify right side
    2,129,353,670.40x = 4,458,967,670,603,003,904
  5. Step 5: Solve for x
    x = 4,458,967,670,603,003,904/2,129,353,670.40
  6. Step 6: Final answer
    x = 2,094,047,472.05

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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.