Home / 5,430,065.40-8,146,019.70-1,643,518.20

Finding the Fourth Proportional to 5,430,065.40, 8,146,019.70 and 1,643,518.20

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Solution

The fourth proportional to 5,430,065.40, 8,146,019.70 and 1,643,518.20 is: 2,465,556.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430,065.40 : 8,146,019.70 = 1,643,518.20 : x
  2. Step 2: Convert to fraction form
    5,430,065.40/8,146,019.70 = 1,643,518.20/x
  3. Step 3: Cross multiply
    5,430,065.40x = 8,146,019.70 × 1,643,518.20
  4. Step 4: Simplify right side
    5,430,065.40x = 13,388,131,634,508.54
  5. Step 5: Solve for x
    x = 13,388,131,634,508.54/5,430,065.40
  6. Step 6: Final answer
    x = 2,465,556.24

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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.