Home / 7,860,021.60-11,782,904.40-2,810,157.60

Finding the Fourth Proportional to 7,860,021.60, 11,782,904.40 and 2,810,157.60

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Solution

The fourth proportional to 7,860,021.60, 11,782,904.40 and 2,810,157.60 is: 4,212,687.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,860,021.60 : 11,782,904.40 = 2,810,157.60 : x
  2. Step 2: Convert to fraction form
    7,860,021.60/11,782,904.40 = 2,810,157.60/x
  3. Step 3: Cross multiply
    7,860,021.60x = 11,782,904.40 × 2,810,157.60
  4. Step 4: Simplify right side
    7,860,021.60x = 33,111,818,349,733.44
  5. Step 5: Solve for x
    x = 33,111,818,349,733.44/7,860,021.60
  6. Step 6: Final answer
    x = 4,212,687.96

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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.