Home / 437,815,316.60-656,289,822.90-207,379,374.20

Finding the Fourth Proportional to 437,815,316.60, 656,289,822.90 and 207,379,374.20

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Solution

The fourth proportional to 437,815,316.60, 656,289,822.90 and 207,379,374.20 is: 310,863,890.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,815,316.60 : 656,289,822.90 = 207,379,374.20 : x
  2. Step 2: Convert to fraction form
    437,815,316.60/656,289,822.90 = 207,379,374.20/x
  3. Step 3: Cross multiply
    437,815,316.60x = 656,289,822.90 × 207,379,374.20
  4. Step 4: Simplify right side
    437,815,316.60x = 136,100,972,766,830,816
  5. Step 5: Solve for x
    x = 136,100,972,766,830,816/437,815,316.60
  6. Step 6: Final answer
    x = 310,863,890.79

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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.