Home / 408,090,570.40-563,160,403.20-222,447,512.80

Finding the Fourth Proportional to 408,090,570.40, 563,160,403.20 and 222,447,512.80

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Solution

The fourth proportional to 408,090,570.40, 563,160,403.20 and 222,447,512.80 is: 306,975,068.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,090,570.40 : 563,160,403.20 = 222,447,512.80 : x
  2. Step 2: Convert to fraction form
    408,090,570.40/563,160,403.20 = 222,447,512.80/x
  3. Step 3: Cross multiply
    408,090,570.40x = 563,160,403.20 × 222,447,512.80
  4. Step 4: Simplify right side
    408,090,570.40x = 125,273,630,999,285,184
  5. Step 5: Solve for x
    x = 125,273,630,999,285,184/408,090,570.40
  6. Step 6: Final answer
    x = 306,975,068.98

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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.