Home / 13,286,270.91-18,335,442.46-7,779,130.51

Finding the Fourth Proportional to 13,286,270.91, 18,335,442.46 and 7,779,130.51

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Solution

The fourth proportional to 13,286,270.91, 18,335,442.46 and 7,779,130.51 is: 10,735,427.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,286,270.91 : 18,335,442.46 = 7,779,130.51 : x
  2. Step 2: Convert to fraction form
    13,286,270.91/18,335,442.46 = 7,779,130.51/x
  3. Step 3: Cross multiply
    13,286,270.91x = 18,335,442.46 × 7,779,130.51
  4. Step 4: Simplify right side
    13,286,270.91x = 142,633,799,816,039.78
  5. Step 5: Solve for x
    x = 142,633,799,816,039.78/13,286,270.91
  6. Step 6: Final answer
    x = 10,735,427.63

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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.