Home / 403,549,085.80-605,323,628.70-265,799,578.60

Finding the Fourth Proportional to 403,549,085.80, 605,323,628.70 and 265,799,578.60

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Solution

The fourth proportional to 403,549,085.80, 605,323,628.70 and 265,799,578.60 is: 398,699,367.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,549,085.80 : 605,323,628.70 = 265,799,578.60 : x
  2. Step 2: Convert to fraction form
    403,549,085.80/605,323,628.70 = 265,799,578.60/x
  3. Step 3: Cross multiply
    403,549,085.80x = 605,323,628.70 × 265,799,578.60
  4. Step 4: Simplify right side
    403,549,085.80x = 160,894,765,425,082,880
  5. Step 5: Solve for x
    x = 160,894,765,425,082,880/403,549,085.80
  6. Step 6: Final answer
    x = 398,699,367.90

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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.