Home / 1,680,236,247.40-2,516,323,292.70-817,585,469.80

Finding the Fourth Proportional to 1,680,236,247.40, 2,516,323,292.70 and 817,585,469.80

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Solution

The fourth proportional to 1,680,236,247.40, 2,516,323,292.70 and 817,585,469.80 is: 1,224,416,723.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,680,236,247.40 : 2,516,323,292.70 = 817,585,469.80 : x
  2. Step 2: Convert to fraction form
    1,680,236,247.40/2,516,323,292.70 = 817,585,469.80/x
  3. Step 3: Cross multiply
    1,680,236,247.40x = 2,516,323,292.70 × 817,585,469.80
  4. Step 4: Simplify right side
    1,680,236,247.40x = 2,057,309,361,430,812,160
  5. Step 5: Solve for x
    x = 2,057,309,361,430,812,160/1,680,236,247.40
  6. Step 6: Final answer
    x = 1,224,416,723.91

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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.