Home / 511,559,991.40-767,339,987.10-188,569,834.60

Finding the Fourth Proportional to 511,559,991.40, 767,339,987.10 and 188,569,834.60

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Solution

The fourth proportional to 511,559,991.40, 767,339,987.10 and 188,569,834.60 is: 282,854,751.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,559,991.40 : 767,339,987.10 = 188,569,834.60 : x
  2. Step 2: Convert to fraction form
    511,559,991.40/767,339,987.10 = 188,569,834.60/x
  3. Step 3: Cross multiply
    511,559,991.40x = 767,339,987.10 × 188,569,834.60
  4. Step 4: Simplify right side
    511,559,991.40x = 144,697,174,449,413,120
  5. Step 5: Solve for x
    x = 144,697,174,449,413,120/511,559,991.40
  6. Step 6: Final answer
    x = 282,854,751.90

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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.