Finding the Fourth Proportional to 55,588,143.48, 76,666,908.40 and 48,868,107.67
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Solution
The fourth proportional to 55,588,143.48, 76,666,908.40 and 48,868,107.67 is: 67,398,666.33
Step by Step Solution
- Step 1: Write the proportion equation
55,588,143.48 : 76,666,908.40 = 48,868,107.67 : x - Step 2: Convert to fraction form
55,588,143.48/76,666,908.40 = 48,868,107.67/x - Step 3: Cross multiply
55,588,143.48x = 76,666,908.40 × 48,868,107.67 - Step 4: Simplify right side
55,588,143.48x = 3,746,566,734,417,228 - Step 5: Solve for x
x = 3,746,566,734,417,228/55,588,143.48 - Step 6: Final answer
x = 67,398,666.33
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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.