Home / 72,609,924.89-100,201,698.41-40,014,876.89

Finding the Fourth Proportional to 72,609,924.89, 100,201,698.41 and 40,014,876.89

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Solution

The fourth proportional to 72,609,924.89, 100,201,698.41 and 40,014,876.89 is: 55,220,531.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,609,924.89 : 100,201,698.41 = 40,014,876.89 : x
  2. Step 2: Convert to fraction form
    72,609,924.89/100,201,698.41 = 40,014,876.89/x
  3. Step 3: Cross multiply
    72,609,924.89x = 100,201,698.41 × 40,014,876.89
  4. Step 4: Simplify right side
    72,609,924.89x = 4,009,558,625,343,975.50
  5. Step 5: Solve for x
    x = 4,009,558,625,343,975.50/72,609,924.89
  6. Step 6: Final answer
    x = 55,220,531.24

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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.