Home / 373,289,828.40-515,057,518.80-216,566,170.56

Finding the Fourth Proportional to 373,289,828.40, 515,057,518.80 and 216,566,170.56

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Solution

The fourth proportional to 373,289,828.40, 515,057,518.80 and 216,566,170.56 is: 298,813,484.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,289,828.40 : 515,057,518.80 = 216,566,170.56 : x
  2. Step 2: Convert to fraction form
    373,289,828.40/515,057,518.80 = 216,566,170.56/x
  3. Step 3: Cross multiply
    373,289,828.40x = 515,057,518.80 × 216,566,170.56
  4. Step 4: Simplify right side
    373,289,828.40x = 111,544,034,464,651,216
  5. Step 5: Solve for x
    x = 111,544,034,464,651,216/373,289,828.40
  6. Step 6: Final answer
    x = 298,813,484.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.