Home / 1,091,263,023.48-1,638,059,790.42-469,785,859.32

Finding the Fourth Proportional to 1,091,263,023.48, 1,638,059,790.42 and 469,785,859.32

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Solution

The fourth proportional to 1,091,263,023.48, 1,638,059,790.42 and 469,785,859.32 is: 705,180,428.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,263,023.48 : 1,638,059,790.42 = 469,785,859.32 : x
  2. Step 2: Convert to fraction form
    1,091,263,023.48/1,638,059,790.42 = 469,785,859.32/x
  3. Step 3: Cross multiply
    1,091,263,023.48x = 1,638,059,790.42 × 469,785,859.32
  4. Step 4: Simplify right side
    1,091,263,023.48x = 769,537,326,259,998,848
  5. Step 5: Solve for x
    x = 769,537,326,259,998,848/1,091,263,023.48
  6. Step 6: Final answer
    x = 705,180,428.28

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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.