Finding the Fourth Proportional to 168,469,726.14, 253,854,518.76 and 138,437,071.92
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Solution
The fourth proportional to 168,469,726.14, 253,854,518.76 and 138,437,071.92 is: 208,600,542.52
Step by Step Solution
- Step 1: Write the proportion equation
168,469,726.14 : 253,854,518.76 = 138,437,071.92 : x - Step 2: Convert to fraction form
168,469,726.14/253,854,518.76 = 138,437,071.92/x - Step 3: Cross multiply
168,469,726.14x = 253,854,518.76 × 138,437,071.92 - Step 4: Simplify right side
168,469,726.14x = 35,142,876,270,795,104 - Step 5: Solve for x
x = 35,142,876,270,795,104/168,469,726.14 - Step 6: Final answer
x = 208,600,542.52
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.