Home / 18,681,144.10-28,020,719.69-5,034,071.37

Finding the Fourth Proportional to 18,681,144.10, 28,020,719.69 and 5,034,071.37

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Solution

The fourth proportional to 18,681,144.10, 28,020,719.69 and 5,034,071.37 is: 7,550,838.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,681,144.10 : 28,020,719.69 = 5,034,071.37 : x
  2. Step 2: Convert to fraction form
    18,681,144.10/28,020,719.69 = 5,034,071.37/x
  3. Step 3: Cross multiply
    18,681,144.10x = 28,020,719.69 × 5,034,071.37
  4. Step 4: Simplify right side
    18,681,144.10x = 141,058,302,788,322.41
  5. Step 5: Solve for x
    x = 141,058,302,788,322.41/18,681,144.10
  6. Step 6: Final answer
    x = 7,550,838.54

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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.