Home / 13,291,939.14-18,342,422.55-7,331,582.16

Finding the Fourth Proportional to 13,291,939.14, 18,342,422.55 and 7,331,582.16

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Solution

The fourth proportional to 13,291,939.14, 18,342,422.55 and 7,331,582.16 is: 10,117,333.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,291,939.14 : 18,342,422.55 = 7,331,582.16 : x
  2. Step 2: Convert to fraction form
    13,291,939.14/18,342,422.55 = 7,331,582.16/x
  3. Step 3: Cross multiply
    13,291,939.14x = 18,342,422.55 × 7,331,582.16
  4. Step 4: Simplify right side
    13,291,939.14x = 134,478,977,938,761.72
  5. Step 5: Solve for x
    x = 134,478,977,938,761.72/13,291,939.14
  6. Step 6: Final answer
    x = 10,117,333.26

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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.