Home / 859,431,332.70-1,289,146,999.05-284,928,011.10

Finding the Fourth Proportional to 859,431,332.70, 1,289,146,999.05 and 284,928,011.10

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Solution

The fourth proportional to 859,431,332.70, 1,289,146,999.05 and 284,928,011.10 is: 427,392,016.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,431,332.70 : 1,289,146,999.05 = 284,928,011.10 : x
  2. Step 2: Convert to fraction form
    859,431,332.70/1,289,146,999.05 = 284,928,011.10/x
  3. Step 3: Cross multiply
    859,431,332.70x = 1,289,146,999.05 × 284,928,011.10
  4. Step 4: Simplify right side
    859,431,332.70x = 367,314,090,454,850,112
  5. Step 5: Solve for x
    x = 367,314,090,454,850,112/859,431,332.70
  6. Step 6: Final answer
    x = 427,392,016.65

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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.