Finding the Fourth Proportional to 53,438,259.62, 73,744,490.31 and 28,991,448.74
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Solution
The fourth proportional to 53,438,259.62, 73,744,490.31 and 28,991,448.74 is: 40,008,032.18
Step by Step Solution
- Step 1: Write the proportion equation
53,438,259.62 : 73,744,490.31 = 28,991,448.74 : x - Step 2: Convert to fraction form
53,438,259.62/73,744,490.31 = 28,991,448.74/x - Step 3: Cross multiply
53,438,259.62x = 73,744,490.31 × 28,991,448.74 - Step 4: Simplify right side
53,438,259.62x = 2,137,959,610,679,791.75 - Step 5: Solve for x
x = 2,137,959,610,679,791.75/53,438,259.62 - Step 6: Final answer
x = 40,008,032.18
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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.