Home / 859,627,780.20-1,289,441,670.30-368,257,431.60

Finding the Fourth Proportional to 859,627,780.20, 1,289,441,670.30 and 368,257,431.60

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Solution

The fourth proportional to 859,627,780.20, 1,289,441,670.30 and 368,257,431.60 is: 552,386,147.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,627,780.20 : 1,289,441,670.30 = 368,257,431.60 : x
  2. Step 2: Convert to fraction form
    859,627,780.20/1,289,441,670.30 = 368,257,431.60/x
  3. Step 3: Cross multiply
    859,627,780.20x = 1,289,441,670.30 × 368,257,431.60
  4. Step 4: Simplify right side
    859,627,780.20x = 474,846,477,702,692,032
  5. Step 5: Solve for x
    x = 474,846,477,702,692,032/859,627,780.20
  6. Step 6: Final answer
    x = 552,386,147.40

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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.