Home / 670,128,002.80-1,005,192,004.20-452,449,769.20

Finding the Fourth Proportional to 670,128,002.80, 1,005,192,004.20 and 452,449,769.20

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Solution

The fourth proportional to 670,128,002.80, 1,005,192,004.20 and 452,449,769.20 is: 678,674,653.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,128,002.80 : 1,005,192,004.20 = 452,449,769.20 : x
  2. Step 2: Convert to fraction form
    670,128,002.80/1,005,192,004.20 = 452,449,769.20/x
  3. Step 3: Cross multiply
    670,128,002.80x = 1,005,192,004.20 × 452,449,769.20
  4. Step 4: Simplify right side
    670,128,002.80x = 454,798,890,301,975,424
  5. Step 5: Solve for x
    x = 454,798,890,301,975,424/670,128,002.80
  6. Step 6: Final answer
    x = 678,674,653.80

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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.