Home / 12,390,270.40-18,581,213.76-4,712,091.04

Finding the Fourth Proportional to 12,390,270.40, 18,581,213.76 and 4,712,091.04

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Solution

The fourth proportional to 12,390,270.40, 18,581,213.76 and 4,712,091.04 is: 7,066,542.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,390,270.40 : 18,581,213.76 = 4,712,091.04 : x
  2. Step 2: Convert to fraction form
    12,390,270.40/18,581,213.76 = 4,712,091.04/x
  3. Step 3: Cross multiply
    12,390,270.40x = 18,581,213.76 × 4,712,091.04
  4. Step 4: Simplify right side
    12,390,270.40x = 87,556,370,870,820.72
  5. Step 5: Solve for x
    x = 87,556,370,870,820.72/12,390,270.40
  6. Step 6: Final answer
    x = 7,066,542.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.