Home / 403,478,259.80-605,217,389.70-265,728,752.60

Finding the Fourth Proportional to 403,478,259.80, 605,217,389.70 and 265,728,752.60

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Solution

The fourth proportional to 403,478,259.80, 605,217,389.70 and 265,728,752.60 is: 398,593,128.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,478,259.80 : 605,217,389.70 = 265,728,752.60 : x
  2. Step 2: Convert to fraction form
    403,478,259.80/605,217,389.70 = 265,728,752.60/x
  3. Step 3: Cross multiply
    403,478,259.80x = 605,217,389.70 × 265,728,752.60
  4. Step 4: Simplify right side
    403,478,259.80x = 160,823,662,016,809,088
  5. Step 5: Solve for x
    x = 160,823,662,016,809,088/403,478,259.80
  6. Step 6: Final answer
    x = 398,593,128.90

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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.