Home / 399,228,907.60-598,843,361.40-217,830,379.60

Finding the Fourth Proportional to 399,228,907.60, 598,843,361.40 and 217,830,379.60

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Solution

The fourth proportional to 399,228,907.60, 598,843,361.40 and 217,830,379.60 is: 326,745,569.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,228,907.60 : 598,843,361.40 = 217,830,379.60 : x
  2. Step 2: Convert to fraction form
    399,228,907.60/598,843,361.40 = 217,830,379.60/x
  3. Step 3: Cross multiply
    399,228,907.60x = 598,843,361.40 × 217,830,379.60
  4. Step 4: Simplify right side
    399,228,907.60x = 130,446,276,734,701,984
  5. Step 5: Solve for x
    x = 130,446,276,734,701,984/399,228,907.60
  6. Step 6: Final answer
    x = 326,745,569.40

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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.