Home / 313,076,539.80-469,614,809.70-198,190,805.40

Finding the Fourth Proportional to 313,076,539.80, 469,614,809.70 and 198,190,805.40

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Solution

The fourth proportional to 313,076,539.80, 469,614,809.70 and 198,190,805.40 is: 297,286,208.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,076,539.80 : 469,614,809.70 = 198,190,805.40 : x
  2. Step 2: Convert to fraction form
    313,076,539.80/469,614,809.70 = 198,190,805.40/x
  3. Step 3: Cross multiply
    313,076,539.80x = 469,614,809.70 × 198,190,805.40
  4. Step 4: Simplify right side
    313,076,539.80x = 93,073,337,362,210,736
  5. Step 5: Solve for x
    x = 93,073,337,362,210,736/313,076,539.80
  6. Step 6: Final answer
    x = 297,286,208.10

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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.