Home / 285,384,254.40-428,076,381.60-194,684,990.40

Finding the Fourth Proportional to 285,384,254.40, 428,076,381.60 and 194,684,990.40

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Solution

The fourth proportional to 285,384,254.40, 428,076,381.60 and 194,684,990.40 is: 292,027,485.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,384,254.40 : 428,076,381.60 = 194,684,990.40 : x
  2. Step 2: Convert to fraction form
    285,384,254.40/428,076,381.60 = 194,684,990.40/x
  3. Step 3: Cross multiply
    285,384,254.40x = 428,076,381.60 × 194,684,990.40
  4. Step 4: Simplify right side
    285,384,254.40x = 83,340,046,242,262,736
  5. Step 5: Solve for x
    x = 83,340,046,242,262,736/285,384,254.40
  6. Step 6: Final answer
    x = 292,027,485.60

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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.