Home / 13,156,913.56-18,155,619.00-7,649,897.72

Finding the Fourth Proportional to 13,156,913.56, 18,155,619.00 and 7,649,897.72

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Solution

The fourth proportional to 13,156,913.56, 18,155,619.00 and 7,649,897.72 is: 10,556,322.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,156,913.56 : 18,155,619.00 = 7,649,897.72 : x
  2. Step 2: Convert to fraction form
    13,156,913.56/18,155,619.00 = 7,649,897.72/x
  3. Step 3: Cross multiply
    13,156,913.56x = 18,155,619.00 × 7,649,897.72
  4. Step 4: Simplify right side
    13,156,913.56x = 138,888,628,264,261.11
  5. Step 5: Solve for x
    x = 138,888,628,264,261.11/13,156,913.56
  6. Step 6: Final answer
    x = 10,556,322.93

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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.