Home / 403,353,403.40-605,030,105.10-265,603,896.20

Finding the Fourth Proportional to 403,353,403.40, 605,030,105.10 and 265,603,896.20

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Solution

The fourth proportional to 403,353,403.40, 605,030,105.10 and 265,603,896.20 is: 398,405,844.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,353,403.40 : 605,030,105.10 = 265,603,896.20 : x
  2. Step 2: Convert to fraction form
    403,353,403.40/605,030,105.10 = 265,603,896.20/x
  3. Step 3: Cross multiply
    403,353,403.40x = 605,030,105.10 × 265,603,896.20
  4. Step 4: Simplify right side
    403,353,403.40x = 160,698,353,232,855,488
  5. Step 5: Solve for x
    x = 160,698,353,232,855,488/403,353,403.40
  6. Step 6: Final answer
    x = 398,405,844.30

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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.