Home / 253,531,374.45-380,315,551.34-78,632,203.83

Finding the Fourth Proportional to 253,531,374.45, 380,315,551.34 and 78,632,203.83

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Solution

The fourth proportional to 253,531,374.45, 380,315,551.34 and 78,632,203.83 is: 117,954,040.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,531,374.45 : 380,315,551.34 = 78,632,203.83 : x
  2. Step 2: Convert to fraction form
    253,531,374.45/380,315,551.34 = 78,632,203.83/x
  3. Step 3: Cross multiply
    253,531,374.45x = 380,315,551.34 × 78,632,203.83
  4. Step 4: Simplify right side
    253,531,374.45x = 29,905,049,952,685,708
  5. Step 5: Solve for x
    x = 29,905,049,952,685,708/253,531,374.45
  6. Step 6: Final answer
    x = 117,954,040.27

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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.