Home / 747,305,715.60-1,120,958,573.40-287,258,893.20

Finding the Fourth Proportional to 747,305,715.60, 1,120,958,573.40 and 287,258,893.20

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Solution

The fourth proportional to 747,305,715.60, 1,120,958,573.40 and 287,258,893.20 is: 430,888,339.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,305,715.60 : 1,120,958,573.40 = 287,258,893.20 : x
  2. Step 2: Convert to fraction form
    747,305,715.60/1,120,958,573.40 = 287,258,893.20/x
  3. Step 3: Cross multiply
    747,305,715.60x = 1,120,958,573.40 × 287,258,893.20
  4. Step 4: Simplify right side
    747,305,715.60x = 322,005,319,117,934,976
  5. Step 5: Solve for x
    x = 322,005,319,117,934,976/747,305,715.60
  6. Step 6: Final answer
    x = 430,888,339.80

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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.