Home / 2,120,178,180.64-2,925,751,507.88-1,215,285,394.16

Finding the Fourth Proportional to 2,120,178,180.64, 2,925,751,507.88 and 1,215,285,394.16

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Solution

The fourth proportional to 2,120,178,180.64, 2,925,751,507.88 and 1,215,285,394.16 is: 1,677,039,744.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,120,178,180.64 : 2,925,751,507.88 = 1,215,285,394.16 : x
  2. Step 2: Convert to fraction form
    2,120,178,180.64/2,925,751,507.88 = 1,215,285,394.16/x
  3. Step 3: Cross multiply
    2,120,178,180.64x = 2,925,751,507.88 × 1,215,285,394.16
  4. Step 4: Simplify right side
    2,120,178,180.64x = 3,555,623,074,468,160,512
  5. Step 5: Solve for x
    x = 3,555,623,074,468,160,512/2,120,178,180.64
  6. Step 6: Final answer
    x = 1,677,039,744.55

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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.