Home / 442,464,512.40-663,696,768.60-398,626,534.80

Finding the Fourth Proportional to 442,464,512.40, 663,696,768.60 and 398,626,534.80

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Solution

The fourth proportional to 442,464,512.40, 663,696,768.60 and 398,626,534.80 is: 597,939,802.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,464,512.40 : 663,696,768.60 = 398,626,534.80 : x
  2. Step 2: Convert to fraction form
    442,464,512.40/663,696,768.60 = 398,626,534.80/x
  3. Step 3: Cross multiply
    442,464,512.40x = 663,696,768.60 × 398,626,534.80
  4. Step 4: Simplify right side
    442,464,512.40x = 264,567,143,024,975,456
  5. Step 5: Solve for x
    x = 264,567,143,024,975,456/442,464,512.40
  6. Step 6: Final answer
    x = 597,939,802.20

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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.