Finding the Fourth Proportional to 121,168,559,497.80, 181,752,839,246.70 and 71,578,736,905.80
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Solution
The fourth proportional to 121,168,559,497.80, 181,752,839,246.70 and 71,578,736,905.80 is: 107,368,105,358.70
Step by Step Solution
- Step 1: Write the proportion equation
121,168,559,497.80 : 181,752,839,246.70 = 71,578,736,905.80 : x - Step 2: Convert to fraction form
121,168,559,497.80/181,752,839,246.70 = 71,578,736,905.80/x - Step 3: Cross multiply
121,168,559,497.80x = 181,752,839,246.70 × 71,578,736,905.80 - Step 4: Simplify right side
121,168,559,497.80x = 13,009,638,662,321,702,174,720 - Step 5: Solve for x
x = 13,009,638,662,321,702,174,720/121,168,559,497.80 - Step 6: Final answer
x = 107,368,105,358.70
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1.5x scale
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.