Home / 859,651,268.48-1,289,729,894.88-277,374,590.72

Finding the Fourth Proportional to 859,651,268.48, 1,289,729,894.88 and 277,374,590.72

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Solution

The fourth proportional to 859,651,268.48, 1,289,729,894.88 and 277,374,590.72 is: 416,143,516.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,651,268.48 : 1,289,729,894.88 = 277,374,590.72 : x
  2. Step 2: Convert to fraction form
    859,651,268.48/1,289,729,894.88 = 277,374,590.72/x
  3. Step 3: Cross multiply
    859,651,268.48x = 1,289,729,894.88 × 277,374,590.72
  4. Step 4: Simplify right side
    859,651,268.48x = 357,738,301,725,240,000
  5. Step 5: Solve for x
    x = 357,738,301,725,240,000/859,651,268.48
  6. Step 6: Final answer
    x = 416,143,516.38

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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.