Finding the Fourth Proportional to 38,555,367,346.97, 53,206,406,689.74 and 21,639,014,901.57
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Solution
The fourth proportional to 38,555,367,346.97, 53,206,406,689.74 and 21,639,014,901.57 is: 29,861,840,424.37
Step by Step Solution
- Step 1: Write the proportion equation
38,555,367,346.97 : 53,206,406,689.74 = 21,639,014,901.57 : x - Step 2: Convert to fraction form
38,555,367,346.97/53,206,406,689.74 = 21,639,014,901.57/x - Step 3: Cross multiply
38,555,367,346.97x = 53,206,406,689.74 × 21,639,014,901.57 - Step 4: Simplify right side
38,555,367,346.97x = 1,151,334,227,218,289,262,592 - Step 5: Solve for x
x = 1,151,334,227,218,289,262,592/38,555,367,346.97 - Step 6: Final answer
x = 29,861,840,424.37
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Double scale
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1.5x scale
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.