Home / 86,920,135,999.70-130,380,203,999.55-53,860,254,271.70

Finding the Fourth Proportional to 86,920,135,999.70, 130,380,203,999.55 and 53,860,254,271.70

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Solution

The fourth proportional to 86,920,135,999.70, 130,380,203,999.55 and 53,860,254,271.70 is: 80,790,381,407.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,920,135,999.70 : 130,380,203,999.55 = 53,860,254,271.70 : x
  2. Step 2: Convert to fraction form
    86,920,135,999.70/130,380,203,999.55 = 53,860,254,271.70/x
  3. Step 3: Cross multiply
    86,920,135,999.70x = 130,380,203,999.55 × 53,860,254,271.70
  4. Step 4: Simplify right side
    86,920,135,999.70x = 7,022,310,939,411,880,083,456
  5. Step 5: Solve for x
    x = 7,022,310,939,411,880,083,456/86,920,135,999.70
  6. Step 6: Final answer
    x = 80,790,381,407.55

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Similar ratio
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1.5x scale

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.