Finding the Fourth Proportional to 216,252,574.74, 298,428,562.71 and 117,133,322.13
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Solution
The fourth proportional to 216,252,574.74, 298,428,562.71 and 117,133,322.13 is: 161,643,989.72
Step by Step Solution
- Step 1: Write the proportion equation
216,252,574.74 : 298,428,562.71 = 117,133,322.13 : x - Step 2: Convert to fraction form
216,252,574.74/298,428,562.71 = 117,133,322.13/x - Step 3: Cross multiply
216,252,574.74x = 298,428,562.71 × 117,133,322.13 - Step 4: Simplify right side
216,252,574.74x = 34,955,928,968,703,332 - Step 5: Solve for x
x = 34,955,928,968,703,332/216,252,574.74 - Step 6: Final answer
x = 161,643,989.72
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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.