Home / 72,382,393.31-108,512,566.49-31,410,967.86

Finding the Fourth Proportional to 72,382,393.31, 108,512,566.49 and 31,410,967.86

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Solution

The fourth proportional to 72,382,393.31, 108,512,566.49 and 31,410,967.86 is: 47,089,970.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,382,393.31 : 108,512,566.49 = 31,410,967.86 : x
  2. Step 2: Convert to fraction form
    72,382,393.31/108,512,566.49 = 31,410,967.86/x
  3. Step 3: Cross multiply
    72,382,393.31x = 108,512,566.49 × 31,410,967.86
  4. Step 4: Simplify right side
    72,382,393.31x = 3,408,484,738,871,472
  5. Step 5: Solve for x
    x = 3,408,484,738,871,472/72,382,393.31
  6. Step 6: Final answer
    x = 47,089,970.13

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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.