Home / 399,450,030.80-599,175,046.20-338,983,854.80

Finding the Fourth Proportional to 399,450,030.80, 599,175,046.20 and 338,983,854.80

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Solution

The fourth proportional to 399,450,030.80, 599,175,046.20 and 338,983,854.80 is: 508,475,782.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,450,030.80 : 599,175,046.20 = 338,983,854.80 : x
  2. Step 2: Convert to fraction form
    399,450,030.80/599,175,046.20 = 338,983,854.80/x
  3. Step 3: Cross multiply
    399,450,030.80x = 599,175,046.20 × 338,983,854.80
  4. Step 4: Simplify right side
    399,450,030.80x = 203,110,666,860,844,128
  5. Step 5: Solve for x
    x = 203,110,666,860,844,128/399,450,030.80
  6. Step 6: Final answer
    x = 508,475,782.20

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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.