Home / 13,445,427.80-18,549,402.72-8,279,821.28

Finding the Fourth Proportional to 13,445,427.80, 18,549,402.72 and 8,279,821.28

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Solution

The fourth proportional to 13,445,427.80, 18,549,402.72 and 8,279,821.28 is: 11,422,897.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,445,427.80 : 18,549,402.72 = 8,279,821.28 : x
  2. Step 2: Convert to fraction form
    13,445,427.80/18,549,402.72 = 8,279,821.28/x
  3. Step 3: Cross multiply
    13,445,427.80x = 18,549,402.72 × 8,279,821.28
  4. Step 4: Simplify right side
    13,445,427.80x = 153,585,739,372,345.88
  5. Step 5: Solve for x
    x = 153,585,739,372,345.88/13,445,427.80
  6. Step 6: Final answer
    x = 11,422,897.19

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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.