Home / 28,615,905.67-42,938,055.78-11,343,741.48

Finding the Fourth Proportional to 28,615,905.67, 42,938,055.78 and 11,343,741.48

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Solution

The fourth proportional to 28,615,905.67, 42,938,055.78 and 11,343,741.48 is: 17,021,240.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,615,905.67 : 42,938,055.78 = 11,343,741.48 : x
  2. Step 2: Convert to fraction form
    28,615,905.67/42,938,055.78 = 11,343,741.48/x
  3. Step 3: Cross multiply
    28,615,905.67x = 42,938,055.78 × 11,343,741.48
  4. Step 4: Simplify right side
    28,615,905.67x = 487,078,204,422,139.81
  5. Step 5: Solve for x
    x = 487,078,204,422,139.81/28,615,905.67
  6. Step 6: Final answer
    x = 17,021,240.22

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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.