Home / 970,240,876.40-1,455,361,314.60-280,170,642.80

Finding the Fourth Proportional to 970,240,876.40, 1,455,361,314.60 and 280,170,642.80

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Solution

The fourth proportional to 970,240,876.40, 1,455,361,314.60 and 280,170,642.80 is: 420,255,964.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,240,876.40 : 1,455,361,314.60 = 280,170,642.80 : x
  2. Step 2: Convert to fraction form
    970,240,876.40/1,455,361,314.60 = 280,170,642.80/x
  3. Step 3: Cross multiply
    970,240,876.40x = 1,455,361,314.60 × 280,170,642.80
  4. Step 4: Simplify right side
    970,240,876.40x = 407,749,515,017,735,040
  5. Step 5: Solve for x
    x = 407,749,515,017,735,040/970,240,876.40
  6. Step 6: Final answer
    x = 420,255,964.20

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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.