Home / 1,019,263,581.97-1,528,897,146.45-319,809,395.86

Finding the Fourth Proportional to 1,019,263,581.97, 1,528,897,146.45 and 319,809,395.86

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Solution

The fourth proportional to 1,019,263,581.97, 1,528,897,146.45 and 319,809,395.86 is: 479,714,650.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,263,581.97 : 1,528,897,146.45 = 319,809,395.86 : x
  2. Step 2: Convert to fraction form
    1,019,263,581.97/1,528,897,146.45 = 319,809,395.86/x
  3. Step 3: Cross multiply
    1,019,263,581.97x = 1,528,897,146.45 × 319,809,395.86
  4. Step 4: Simplify right side
    1,019,263,581.97x = 488,955,672,734,430,272
  5. Step 5: Solve for x
    x = 488,955,672,734,430,272/1,019,263,581.97
  6. Step 6: Final answer
    x = 479,714,650.25

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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.