Home / 730,537,620.39-1,008,143,261.96-396,009,107.91

Finding the Fourth Proportional to 730,537,620.39, 1,008,143,261.96 and 396,009,107.91

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Solution

The fourth proportional to 730,537,620.39, 1,008,143,261.96 and 396,009,107.91 is: 546,493,298.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,537,620.39 : 1,008,143,261.96 = 396,009,107.91 : x
  2. Step 2: Convert to fraction form
    730,537,620.39/1,008,143,261.96 = 396,009,107.91/x
  3. Step 3: Cross multiply
    730,537,620.39x = 1,008,143,261.96 × 396,009,107.91
  4. Step 4: Simplify right side
    730,537,620.39x = 399,233,913,812,277,056
  5. Step 5: Solve for x
    x = 399,233,913,812,277,056/730,537,620.39
  6. Step 6: Final answer
    x = 546,493,298.45

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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.