Home / 128,296,762.15-177,050,847.47-69,559,540.87

Finding the Fourth Proportional to 128,296,762.15, 177,050,847.47 and 69,559,540.87

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Solution

The fourth proportional to 128,296,762.15, 177,050,847.47 and 69,559,540.87 is: 95,992,879.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,296,762.15 : 177,050,847.47 = 69,559,540.87 : x
  2. Step 2: Convert to fraction form
    128,296,762.15/177,050,847.47 = 69,559,540.87/x
  3. Step 3: Cross multiply
    128,296,762.15x = 177,050,847.47 × 69,559,540.87
  4. Step 4: Simplify right side
    128,296,762.15x = 12,315,575,660,657,602
  5. Step 5: Solve for x
    x = 12,315,575,660,657,602/128,296,762.15
  6. Step 6: Final answer
    x = 95,992,879.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.