Home / 28,256,120,972.24-38,981,194,559.88-16,818,276,376.40

Finding the Fourth Proportional to 28,256,120,972.24, 38,981,194,559.88 and 16,818,276,376.40

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Solution

The fourth proportional to 28,256,120,972.24, 38,981,194,559.88 and 16,818,276,376.40 is: 23,201,928,680.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,256,120,972.24 : 38,981,194,559.88 = 16,818,276,376.40 : x
  2. Step 2: Convert to fraction form
    28,256,120,972.24/38,981,194,559.88 = 16,818,276,376.40/x
  3. Step 3: Cross multiply
    28,256,120,972.24x = 38,981,194,559.88 × 16,818,276,376.40
  4. Step 4: Simplify right side
    28,256,120,972.24x = 655,596,503,590,281,936,896
  5. Step 5: Solve for x
    x = 655,596,503,590,281,936,896/28,256,120,972.24
  6. Step 6: Final answer
    x = 23,201,928,680.67

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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.