Home / 13,556,700.30-18,708,224.40-7,445,128.80

Finding the Fourth Proportional to 13,556,700.30, 18,708,224.40 and 7,445,128.80

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Solution

The fourth proportional to 13,556,700.30, 18,708,224.40 and 7,445,128.80 is: 10,274,265.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,556,700.30 : 18,708,224.40 = 7,445,128.80 : x
  2. Step 2: Convert to fraction form
    13,556,700.30/18,708,224.40 = 7,445,128.80/x
  3. Step 3: Cross multiply
    13,556,700.30x = 18,708,224.40 × 7,445,128.80
  4. Step 4: Simplify right side
    13,556,700.30x = 139,285,140,277,302.70
  5. Step 5: Solve for x
    x = 139,285,140,277,302.70/13,556,700.30
  6. Step 6: Final answer
    x = 10,274,265.65

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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.