Home / 1,025,972,731.80-1,538,959,097.70-298,985,160.60

Finding the Fourth Proportional to 1,025,972,731.80, 1,538,959,097.70 and 298,985,160.60

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Solution

The fourth proportional to 1,025,972,731.80, 1,538,959,097.70 and 298,985,160.60 is: 448,477,740.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025,972,731.80 : 1,538,959,097.70 = 298,985,160.60 : x
  2. Step 2: Convert to fraction form
    1,025,972,731.80/1,538,959,097.70 = 298,985,160.60/x
  3. Step 3: Cross multiply
    1,025,972,731.80x = 1,538,959,097.70 × 298,985,160.60
  4. Step 4: Simplify right side
    1,025,972,731.80x = 460,125,932,982,665,664
  5. Step 5: Solve for x
    x = 460,125,932,982,665,664/1,025,972,731.80
  6. Step 6: Final answer
    x = 448,477,740.90

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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.