Finding the Fourth Proportional to 782,340,208.40, 1,079,623,173.48 and 425,104,858.64
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Solution
The fourth proportional to 782,340,208.40, 1,079,623,173.48 and 425,104,858.64 is: 586,641,273.99
Step by Step Solution
- Step 1: Write the proportion equation
782,340,208.40 : 1,079,623,173.48 = 425,104,858.64 : x - Step 2: Convert to fraction form
782,340,208.40/1,079,623,173.48 = 425,104,858.64/x - Step 3: Cross multiply
782,340,208.40x = 1,079,623,173.48 × 425,104,858.64 - Step 4: Simplify right side
782,340,208.40x = 458,953,056,546,683,584 - Step 5: Solve for x
x = 458,953,056,546,683,584/782,340,208.40 - Step 6: Final answer
x = 586,641,273.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.