Home / 863,477,984.64-1,295,307,696.96-281,257,622.40

Finding the Fourth Proportional to 863,477,984.64, 1,295,307,696.96 and 281,257,622.40

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Solution

The fourth proportional to 863,477,984.64, 1,295,307,696.96 and 281,257,622.40 is: 421,915,983.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,477,984.64 : 1,295,307,696.96 = 281,257,622.40 : x
  2. Step 2: Convert to fraction form
    863,477,984.64/1,295,307,696.96 = 281,257,622.40/x
  3. Step 3: Cross multiply
    863,477,984.64x = 1,295,307,696.96 × 281,257,622.40
  4. Step 4: Simplify right side
    863,477,984.64x = 364,315,163,123,389,312
  5. Step 5: Solve for x
    x = 364,315,163,123,389,312/863,477,984.64
  6. Step 6: Final answer
    x = 421,915,983.50

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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.