Home / 820,211,246.64-1,131,894,971.52-443,867,852.64

Finding the Fourth Proportional to 820,211,246.64, 1,131,894,971.52 and 443,867,852.64

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Solution

The fourth proportional to 820,211,246.64, 1,131,894,971.52 and 443,867,852.64 is: 612,539,504.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,211,246.64 : 1,131,894,971.52 = 443,867,852.64 : x
  2. Step 2: Convert to fraction form
    820,211,246.64/1,131,894,971.52 = 443,867,852.64/x
  3. Step 3: Cross multiply
    820,211,246.64x = 1,131,894,971.52 × 443,867,852.64
  4. Step 4: Simplify right side
    820,211,246.64x = 502,411,790,422,596,352
  5. Step 5: Solve for x
    x = 502,411,790,422,596,352/820,211,246.64
  6. Step 6: Final answer
    x = 612,539,504.28

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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.