Home / 749,971,763.15-1,034,947,185.87-415,436,945.39

Finding the Fourth Proportional to 749,971,763.15, 1,034,947,185.87 and 415,436,945.39

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Solution

The fourth proportional to 749,971,763.15, 1,034,947,185.87 and 415,436,945.39 is: 573,295,314.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,971,763.15 : 1,034,947,185.87 = 415,436,945.39 : x
  2. Step 2: Convert to fraction form
    749,971,763.15/1,034,947,185.87 = 415,436,945.39/x
  3. Step 3: Cross multiply
    749,971,763.15x = 1,034,947,185.87 × 415,436,945.39
  4. Step 4: Simplify right side
    749,971,763.15x = 429,955,297,537,809,344
  5. Step 5: Solve for x
    x = 429,955,297,537,809,344/749,971,763.15
  6. Step 6: Final answer
    x = 573,295,314.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.