Home / 13,156,913.37-18,155,618.74-7,649,897.53

Finding the Fourth Proportional to 13,156,913.37, 18,155,618.74 and 7,649,897.53

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Solution

The fourth proportional to 13,156,913.37, 18,155,618.74 and 7,649,897.53 is: 10,556,322.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,156,913.37 : 18,155,618.74 = 7,649,897.53 : x
  2. Step 2: Convert to fraction form
    13,156,913.37/18,155,618.74 = 7,649,897.53/x
  3. Step 3: Cross multiply
    13,156,913.37x = 18,155,618.74 × 7,649,897.53
  4. Step 4: Simplify right side
    13,156,913.37x = 138,888,622,916,498.22
  5. Step 5: Solve for x
    x = 138,888,622,916,498.22/13,156,913.37
  6. Step 6: Final answer
    x = 10,556,322.67

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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.