Home / 990,825,829.35-1,486,238,744.03-408,260,205.15

Finding the Fourth Proportional to 990,825,829.35, 1,486,238,744.03 and 408,260,205.15

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Solution

The fourth proportional to 990,825,829.35, 1,486,238,744.03 and 408,260,205.15 is: 612,390,307.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,825,829.35 : 1,486,238,744.03 = 408,260,205.15 : x
  2. Step 2: Convert to fraction form
    990,825,829.35/1,486,238,744.03 = 408,260,205.15/x
  3. Step 3: Cross multiply
    990,825,829.35x = 1,486,238,744.03 × 408,260,205.15
  4. Step 4: Simplify right side
    990,825,829.35x = 606,772,134,537,524,864
  5. Step 5: Solve for x
    x = 606,772,134,537,524,864/990,825,829.35
  6. Step 6: Final answer
    x = 612,390,307.73

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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.