Home / 768,242,639.88-1,152,364,790.88-359,585,768.52

Finding the Fourth Proportional to 768,242,639.88, 1,152,364,790.88 and 359,585,768.52

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Solution

The fourth proportional to 768,242,639.88, 1,152,364,790.88 and 359,585,768.52 is: 539,379,041.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,242,639.88 : 1,152,364,790.88 = 359,585,768.52 : x
  2. Step 2: Convert to fraction form
    768,242,639.88/1,152,364,790.88 = 359,585,768.52/x
  3. Step 3: Cross multiply
    768,242,639.88x = 1,152,364,790.88 × 359,585,768.52
  4. Step 4: Simplify right side
    768,242,639.88x = 414,373,978,943,973,888
  5. Step 5: Solve for x
    x = 414,373,978,943,973,888/768,242,639.88
  6. Step 6: Final answer
    x = 539,379,041.77

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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.