Home / 189,991,323.51-262,186,254.72-107,485,108.26

Finding the Fourth Proportional to 189,991,323.51, 262,186,254.72 and 107,485,108.26

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Solution

The fourth proportional to 189,991,323.51, 262,186,254.72 and 107,485,108.26 is: 148,328,447.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,991,323.51 : 262,186,254.72 = 107,485,108.26 : x
  2. Step 2: Convert to fraction form
    189,991,323.51/262,186,254.72 = 107,485,108.26/x
  3. Step 3: Cross multiply
    189,991,323.51x = 262,186,254.72 × 107,485,108.26
  4. Step 4: Simplify right side
    189,991,323.51x = 28,181,117,972,863,136
  5. Step 5: Solve for x
    x = 28,181,117,972,863,136/189,991,323.51
  6. Step 6: Final answer
    x = 148,328,447.07

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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.