Home / 260,093,887.47-389,867,728.37-87,510,784.68

Finding the Fourth Proportional to 260,093,887.47, 389,867,728.37 and 87,510,784.68

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Solution

The fourth proportional to 260,093,887.47, 389,867,728.37 and 87,510,784.68 is: 131,174,289.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,093,887.47 : 389,867,728.37 = 87,510,784.68 : x
  2. Step 2: Convert to fraction form
    260,093,887.47/389,867,728.37 = 87,510,784.68/x
  3. Step 3: Cross multiply
    260,093,887.47x = 389,867,728.37 × 87,510,784.68
  4. Step 4: Simplify right side
    260,093,887.47x = 34,117,630,830,630,248
  5. Step 5: Solve for x
    x = 34,117,630,830,630,248/260,093,887.47
  6. Step 6: Final answer
    x = 131,174,289.26

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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.