Home / 518,076,291.20-777,114,436.80-211,201,116.80

Finding the Fourth Proportional to 518,076,291.20, 777,114,436.80 and 211,201,116.80

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Solution

The fourth proportional to 518,076,291.20, 777,114,436.80 and 211,201,116.80 is: 316,801,675.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,076,291.20 : 777,114,436.80 = 211,201,116.80 : x
  2. Step 2: Convert to fraction form
    518,076,291.20/777,114,436.80 = 211,201,116.80/x
  3. Step 3: Cross multiply
    518,076,291.20x = 777,114,436.80 × 211,201,116.80
  4. Step 4: Simplify right side
    518,076,291.20x = 164,127,436,933,563,008
  5. Step 5: Solve for x
    x = 164,127,436,933,563,008/518,076,291.20
  6. Step 6: Final answer
    x = 316,801,675.20

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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.