Home / 489,961,287.20-734,941,930.80-436,392,034.40

Finding the Fourth Proportional to 489,961,287.20, 734,941,930.80 and 436,392,034.40

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Solution

The fourth proportional to 489,961,287.20, 734,941,930.80 and 436,392,034.40 is: 654,588,051.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,961,287.20 : 734,941,930.80 = 436,392,034.40 : x
  2. Step 2: Convert to fraction form
    489,961,287.20/734,941,930.80 = 436,392,034.40/x
  3. Step 3: Cross multiply
    489,961,287.20x = 734,941,930.80 × 436,392,034.40
  4. Step 4: Simplify right side
    489,961,287.20x = 320,722,804,347,675,968
  5. Step 5: Solve for x
    x = 320,722,804,347,675,968/489,961,287.20
  6. Step 6: Final answer
    x = 654,588,051.60

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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.