Home / 802,289,873.06-1,202,207,490.72-428,850,880.22

Finding the Fourth Proportional to 802,289,873.06, 1,202,207,490.72 and 428,850,880.22

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Solution

The fourth proportional to 802,289,873.06, 1,202,207,490.72 and 428,850,880.22 is: 642,620,277.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,289,873.06 : 1,202,207,490.72 = 428,850,880.22 : x
  2. Step 2: Convert to fraction form
    802,289,873.06/1,202,207,490.72 = 428,850,880.22/x
  3. Step 3: Cross multiply
    802,289,873.06x = 1,202,207,490.72 × 428,850,880.22
  4. Step 4: Simplify right side
    802,289,873.06x = 515,567,740,602,349,504
  5. Step 5: Solve for x
    x = 515,567,740,602,349,504/802,289,873.06
  6. Step 6: Final answer
    x = 642,620,277.18

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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.