Finding the Fourth Proportional to 19,387,911.36, 29,081,779.56 and 5,009,756.88
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Solution
The fourth proportional to 19,387,911.36, 29,081,779.56 and 5,009,756.88 is: 7,514,612.72
Step by Step Solution
- Step 1: Write the proportion equation
19,387,911.36 : 29,081,779.56 = 5,009,756.88 : x - Step 2: Convert to fraction form
19,387,911.36/29,081,779.56 = 5,009,756.88/x - Step 3: Cross multiply
19,387,911.36x = 29,081,779.56 × 5,009,756.88 - Step 4: Simplify right side
19,387,911.36x = 145,692,645,233,353.38 - Step 5: Solve for x
x = 145,692,645,233,353.38/19,387,911.36 - Step 6: Final answer
x = 7,514,612.72
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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.