Finding the Fourth Proportional to 79,719,305.54, 119,578,959.86 and 19,135,031.54
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Solution
The fourth proportional to 79,719,305.54, 119,578,959.86 and 19,135,031.54 is: 28,702,547.68
Step by Step Solution
- Step 1: Write the proportion equation
79,719,305.54 : 119,578,959.86 = 19,135,031.54 : x - Step 2: Convert to fraction form
79,719,305.54/119,578,959.86 = 19,135,031.54/x - Step 3: Cross multiply
79,719,305.54x = 119,578,959.86 × 19,135,031.54 - Step 4: Simplify right side
79,719,305.54x = 2,288,147,167,747,924 - Step 5: Solve for x
x = 2,288,147,167,747,924/79,719,305.54 - Step 6: Final answer
x = 28,702,547.68
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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.