Home / 421,973,373.57-582,137,766.35-254,616,291.81

Finding the Fourth Proportional to 421,973,373.57, 582,137,766.35 and 254,616,291.81

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Solution

The fourth proportional to 421,973,373.57, 582,137,766.35 and 254,616,291.81 is: 351,258,559.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,973,373.57 : 582,137,766.35 = 254,616,291.81 : x
  2. Step 2: Convert to fraction form
    421,973,373.57/582,137,766.35 = 254,616,291.81/x
  3. Step 3: Cross multiply
    421,973,373.57x = 582,137,766.35 × 254,616,291.81
  4. Step 4: Simplify right side
    421,973,373.57x = 148,221,759,391,695,680
  5. Step 5: Solve for x
    x = 148,221,759,391,695,680/421,973,373.57
  6. Step 6: Final answer
    x = 351,258,559.60

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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.