Finding the Fourth Proportional to 107,133,137.30, 147,702,904.16 and 77,338,674.02
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Solution
The fourth proportional to 107,133,137.30, 147,702,904.16 and 77,338,674.02 is: 106,625,709.32
Step by Step Solution
- Step 1: Write the proportion equation
107,133,137.30 : 147,702,904.16 = 77,338,674.02 : x - Step 2: Convert to fraction form
107,133,137.30/147,702,904.16 = 77,338,674.02/x - Step 3: Cross multiply
107,133,137.30x = 147,702,904.16 × 77,338,674.02 - Step 4: Simplify right side
107,133,137.30x = 11,423,146,756,637,542 - Step 5: Solve for x
x = 11,423,146,756,637,542/107,133,137.30 - Step 6: Final answer
x = 106,625,709.32
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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.