Home / 511,515,948.80-767,273,923.20-188,357,830.40

Finding the Fourth Proportional to 511,515,948.80, 767,273,923.20 and 188,357,830.40

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Solution

The fourth proportional to 511,515,948.80, 767,273,923.20 and 188,357,830.40 is: 282,536,745.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,515,948.80 : 767,273,923.20 = 188,357,830.40 : x
  2. Step 2: Convert to fraction form
    511,515,948.80/767,273,923.20 = 188,357,830.40/x
  3. Step 3: Cross multiply
    511,515,948.80x = 767,273,923.20 × 188,357,830.40
  4. Step 4: Simplify right side
    511,515,948.80x = 144,522,051,496,448,224
  5. Step 5: Solve for x
    x = 144,522,051,496,448,224/511,515,948.80
  6. Step 6: Final answer
    x = 282,536,745.60

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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.