Home / 501,981,014.40-692,750,621.52-278,972,096.28

Finding the Fourth Proportional to 501,981,014.40, 692,750,621.52 and 278,972,096.28

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Solution

The fourth proportional to 501,981,014.40, 692,750,621.52 and 278,972,096.28 is: 384,990,841.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,981,014.40 : 692,750,621.52 = 278,972,096.28 : x
  2. Step 2: Convert to fraction form
    501,981,014.40/692,750,621.52 = 278,972,096.28/x
  3. Step 3: Cross multiply
    501,981,014.40x = 692,750,621.52 × 278,972,096.28
  4. Step 4: Simplify right side
    501,981,014.40x = 193,258,093,084,707,264
  5. Step 5: Solve for x
    x = 193,258,093,084,707,264/501,981,014.40
  6. Step 6: Final answer
    x = 384,990,841.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.