Finding the Fourth Proportional to 1,575,493,247.08, 2,174,187,336.42 and 861,043,387.24
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Solution
The fourth proportional to 1,575,493,247.08, 2,174,187,336.42 and 861,043,387.24 is: 1,188,243,511.75
Step by Step Solution
- Step 1: Write the proportion equation
1,575,493,247.08 : 2,174,187,336.42 = 861,043,387.24 : x - Step 2: Convert to fraction form
1,575,493,247.08/2,174,187,336.42 = 861,043,387.24/x - Step 3: Cross multiply
1,575,493,247.08x = 2,174,187,336.42 × 861,043,387.24 - Step 4: Simplify right side
1,575,493,247.08x = 1,872,069,628,645,390,336 - Step 5: Solve for x
x = 1,872,069,628,645,390,336/1,575,493,247.08 - Step 6: Final answer
x = 1,188,243,511.75
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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.