Finding the Fourth Proportional to 1,444,658,437.20, 2,166,987,655.80 and 354,141,505.20
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Solution
The fourth proportional to 1,444,658,437.20, 2,166,987,655.80 and 354,141,505.20 is: 531,212,257.80
Step by Step Solution
- Step 1: Write the proportion equation
1,444,658,437.20 : 2,166,987,655.80 = 354,141,505.20 : x - Step 2: Convert to fraction form
1,444,658,437.20/2,166,987,655.80 = 354,141,505.20/x - Step 3: Cross multiply
1,444,658,437.20x = 2,166,987,655.80 × 354,141,505.20 - Step 4: Simplify right side
1,444,658,437.20x = 767,420,270,174,831,488 - Step 5: Solve for x
x = 767,420,270,174,831,488/1,444,658,437.20 - Step 6: Final answer
x = 531,212,257.80
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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.