Home / 768,075,774.72-1,059,947,245.44-415,651,677.12

Finding the Fourth Proportional to 768,075,774.72, 1,059,947,245.44 and 415,651,677.12

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Solution

The fourth proportional to 768,075,774.72, 1,059,947,245.44 and 415,651,677.12 is: 573,600,762.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,075,774.72 : 1,059,947,245.44 = 415,651,677.12 : x
  2. Step 2: Convert to fraction form
    768,075,774.72/1,059,947,245.44 = 415,651,677.12/x
  3. Step 3: Cross multiply
    768,075,774.72x = 1,059,947,245.44 × 415,651,677.12
  4. Step 4: Simplify right side
    768,075,774.72x = 440,568,850,225,860,288
  5. Step 5: Solve for x
    x = 440,568,850,225,860,288/768,075,774.72
  6. Step 6: Final answer
    x = 573,600,762.75

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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.