Home / 809,146,107.82-1,116,621,630.22-437,868,139.06

Finding the Fourth Proportional to 809,146,107.82, 1,116,621,630.22 and 437,868,139.06

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Solution

The fourth proportional to 809,146,107.82, 1,116,621,630.22 and 437,868,139.06 is: 604,258,032.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,146,107.82 : 1,116,621,630.22 = 437,868,139.06 : x
  2. Step 2: Convert to fraction form
    809,146,107.82/1,116,621,630.22 = 437,868,139.06/x
  3. Step 3: Cross multiply
    809,146,107.82x = 1,116,621,630.22 × 437,868,139.06
  4. Step 4: Simplify right side
    809,146,107.82x = 488,933,035,258,574,848
  5. Step 5: Solve for x
    x = 488,933,035,258,574,848/809,146,107.82
  6. Step 6: Final answer
    x = 604,258,032.68

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1.5x scale

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.