Home / 13,446,684.78-18,556,402.50-7,335,113.28

Finding the Fourth Proportional to 13,446,684.78, 18,556,402.50 and 7,335,113.28

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Solution

The fourth proportional to 13,446,684.78, 18,556,402.50 and 7,335,113.28 is: 10,122,444.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,446,684.78 : 18,556,402.50 = 7,335,113.28 : x
  2. Step 2: Convert to fraction form
    13,446,684.78/18,556,402.50 = 7,335,113.28/x
  3. Step 3: Cross multiply
    13,446,684.78x = 18,556,402.50 × 7,335,113.28
  4. Step 4: Simplify right side
    13,446,684.78x = 136,113,314,406,775.20
  5. Step 5: Solve for x
    x = 136,113,314,406,775.20/13,446,684.78
  6. Step 6: Final answer
    x = 10,122,444.05

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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.