Home / 860,364,054.72-1,290,544,113.60-368,758,560.24

Finding the Fourth Proportional to 860,364,054.72, 1,290,544,113.60 and 368,758,560.24

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Solution

The fourth proportional to 860,364,054.72, 1,290,544,113.60 and 368,758,560.24 is: 553,136,996.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,364,054.72 : 1,290,544,113.60 = 368,758,560.24 : x
  2. Step 2: Convert to fraction form
    860,364,054.72/1,290,544,113.60 = 368,758,560.24/x
  3. Step 3: Cross multiply
    860,364,054.72x = 1,290,544,113.60 × 368,758,560.24
  4. Step 4: Simplify right side
    860,364,054.72x = 475,899,189,257,342,976
  5. Step 5: Solve for x
    x = 475,899,189,257,342,976/860,364,054.72
  6. Step 6: Final answer
    x = 553,136,996.65

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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.