Finding the Fourth Proportional to 71,668,616.84, 106,979,717.12 and 61,498,829.00
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Solution
The fourth proportional to 71,668,616.84, 106,979,717.12 and 61,498,829.00 is: 91,799,278.68
Step by Step Solution
- Step 1: Write the proportion equation
71,668,616.84 : 106,979,717.12 = 61,498,829.00 : x - Step 2: Convert to fraction form
71,668,616.84/106,979,717.12 = 61,498,829.00/x - Step 3: Cross multiply
71,668,616.84x = 106,979,717.12 × 61,498,829.00 - Step 4: Simplify right side
71,668,616.84x = 6,579,127,329,591,207 - Step 5: Solve for x
x = 6,579,127,329,591,207/71,668,616.84 - Step 6: Final answer
x = 91,799,278.68
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.