Home / 354,312,076.80-531,468,115.20-340,707,187.20

Finding the Fourth Proportional to 354,312,076.80, 531,468,115.20 and 340,707,187.20

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Solution

The fourth proportional to 354,312,076.80, 531,468,115.20 and 340,707,187.20 is: 511,060,780.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,312,076.80 : 531,468,115.20 = 340,707,187.20 : x
  2. Step 2: Convert to fraction form
    354,312,076.80/531,468,115.20 = 340,707,187.20/x
  3. Step 3: Cross multiply
    354,312,076.80x = 531,468,115.20 × 340,707,187.20
  4. Step 4: Simplify right side
    354,312,076.80x = 181,075,006,616,277,568
  5. Step 5: Solve for x
    x = 181,075,006,616,277,568/354,312,076.80
  6. Step 6: Final answer
    x = 511,060,780.80

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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.