Home / 515,268,675.80-772,903,013.70-413,232,003.80

Finding the Fourth Proportional to 515,268,675.80, 772,903,013.70 and 413,232,003.80

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Solution

The fourth proportional to 515,268,675.80, 772,903,013.70 and 413,232,003.80 is: 619,848,005.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,268,675.80 : 772,903,013.70 = 413,232,003.80 : x
  2. Step 2: Convert to fraction form
    515,268,675.80/772,903,013.70 = 413,232,003.80/x
  3. Step 3: Cross multiply
    515,268,675.80x = 772,903,013.70 × 413,232,003.80
  4. Step 4: Simplify right side
    515,268,675.80x = 319,388,261,094,309,888
  5. Step 5: Solve for x
    x = 319,388,261,094,309,888/515,268,675.80
  6. Step 6: Final answer
    x = 619,848,005.70

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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.