Finding the Fourth Proportional to 342,965,616.48, 473,290,542.72 and 201,918,813.12
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Solution
The fourth proportional to 342,965,616.48, 473,290,542.72 and 201,918,813.12 is: 278,646,779.90
Step by Step Solution
- Step 1: Write the proportion equation
342,965,616.48 : 473,290,542.72 = 201,918,813.12 : x - Step 2: Convert to fraction form
342,965,616.48/473,290,542.72 = 201,918,813.12/x - Step 3: Cross multiply
342,965,616.48x = 473,290,542.72 × 201,918,813.12 - Step 4: Simplify right side
342,965,616.48x = 95,566,264,646,943,072 - Step 5: Solve for x
x = 95,566,264,646,943,072/342,965,616.48 - Step 6: Final answer
x = 278,646,779.90
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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.