Home / 2,120,178,182.64-2,925,751,510.64-1,215,285,396.16

Finding the Fourth Proportional to 2,120,178,182.64, 2,925,751,510.64 and 1,215,285,396.16

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Solution

The fourth proportional to 2,120,178,182.64, 2,925,751,510.64 and 1,215,285,396.16 is: 1,677,039,747.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,120,178,182.64 : 2,925,751,510.64 = 1,215,285,396.16 : x
  2. Step 2: Convert to fraction form
    2,120,178,182.64/2,925,751,510.64 = 1,215,285,396.16/x
  3. Step 3: Cross multiply
    2,120,178,182.64x = 2,925,751,510.64 × 1,215,285,396.16
  4. Step 4: Simplify right side
    2,120,178,182.64x = 3,555,623,083,673,850,880
  5. Step 5: Solve for x
    x = 3,555,623,083,673,850,880/2,120,178,182.64
  6. Step 6: Final answer
    x = 1,677,039,747.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.