Home / 700,145,480.07-966,255,840.50-398,743,535.84

Finding the Fourth Proportional to 700,145,480.07, 966,255,840.50 and 398,743,535.84

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Solution

The fourth proportional to 700,145,480.07, 966,255,840.50 and 398,743,535.84 is: 550,297,447.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,145,480.07 : 966,255,840.50 = 398,743,535.84 : x
  2. Step 2: Convert to fraction form
    700,145,480.07/966,255,840.50 = 398,743,535.84/x
  3. Step 3: Cross multiply
    700,145,480.07x = 966,255,840.50 × 398,743,535.84
  4. Step 4: Simplify right side
    700,145,480.07x = 385,288,270,360,196,032
  5. Step 5: Solve for x
    x = 385,288,270,360,196,032/700,145,480.07
  6. Step 6: Final answer
    x = 550,297,447.21

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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.