Home / 862,285,520.40-1,293,428,280.60-309,852,600.90

Finding the Fourth Proportional to 862,285,520.40, 1,293,428,280.60 and 309,852,600.90

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Solution

The fourth proportional to 862,285,520.40, 1,293,428,280.60 and 309,852,600.90 is: 464,778,901.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,285,520.40 : 1,293,428,280.60 = 309,852,600.90 : x
  2. Step 2: Convert to fraction form
    862,285,520.40/1,293,428,280.60 = 309,852,600.90/x
  3. Step 3: Cross multiply
    862,285,520.40x = 1,293,428,280.60 × 309,852,600.90
  4. Step 4: Simplify right side
    862,285,520.40x = 400,772,116,821,524,928
  5. Step 5: Solve for x
    x = 400,772,116,821,524,928/862,285,520.40
  6. Step 6: Final answer
    x = 464,778,901.35

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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.