Finding the Fourth Proportional to 320,616,567.63, 442,451,720.93 and 173,938,851.63
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Solution
The fourth proportional to 320,616,567.63, 442,451,720.93 and 173,938,851.63 is: 240,036,080.51
Step by Step Solution
- Step 1: Write the proportion equation
320,616,567.63 : 442,451,720.93 = 173,938,851.63 : x - Step 2: Convert to fraction form
320,616,567.63/442,451,720.93 = 173,938,851.63/x - Step 3: Cross multiply
320,616,567.63x = 442,451,720.93 × 173,938,851.63 - Step 4: Simplify right side
320,616,567.63x = 76,959,544,239,411,744 - Step 5: Solve for x
x = 76,959,544,239,411,744/320,616,567.63 - Step 6: Final answer
x = 240,036,080.51
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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.