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Finding the Fourth Proportional to 863,925,874.65, 1,295,946,275.37 and 303,619,938.33

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Solution

The fourth proportional to 863,925,874.65, 1,295,946,275.37 and 303,619,938.33 is: 455,450,102.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,925,874.65 : 1,295,946,275.37 = 303,619,938.33 : x
  2. Step 2: Convert to fraction form
    863,925,874.65/1,295,946,275.37 = 303,619,938.33/x
  3. Step 3: Cross multiply
    863,925,874.65x = 1,295,946,275.37 × 303,619,938.33
  4. Step 4: Simplify right side
    863,925,874.65x = 393,475,128,206,832,512
  5. Step 5: Solve for x
    x = 393,475,128,206,832,512/863,925,874.65
  6. Step 6: Final answer
    x = 455,450,102.55

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Double scale
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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.