Home / 747,305,718.60-1,120,958,577.90-287,258,896.20

Finding the Fourth Proportional to 747,305,718.60, 1,120,958,577.90 and 287,258,896.20

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Solution

The fourth proportional to 747,305,718.60, 1,120,958,577.90 and 287,258,896.20 is: 430,888,344.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,305,718.60 : 1,120,958,577.90 = 287,258,896.20 : x
  2. Step 2: Convert to fraction form
    747,305,718.60/1,120,958,577.90 = 287,258,896.20/x
  3. Step 3: Cross multiply
    747,305,718.60x = 1,120,958,577.90 × 287,258,896.20
  4. Step 4: Simplify right side
    747,305,718.60x = 322,005,323,773,475,712
  5. Step 5: Solve for x
    x = 322,005,323,773,475,712/747,305,718.60
  6. Step 6: Final answer
    x = 430,888,344.30

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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.