Finding the Fourth Proportional to 124,584,715.44, 171,921,703.92 and 71,657,398.98
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Solution
The fourth proportional to 124,584,715.44, 171,921,703.92 and 71,657,398.98 is: 98,884,217.76
Step by Step Solution
- Step 1: Write the proportion equation
124,584,715.44 : 171,921,703.92 = 71,657,398.98 : x - Step 2: Convert to fraction form
124,584,715.44/171,921,703.92 = 71,657,398.98/x - Step 3: Cross multiply
124,584,715.44x = 171,921,703.92 × 71,657,398.98 - Step 4: Simplify right side
124,584,715.44x = 12,319,462,131,116,870 - Step 5: Solve for x
x = 12,319,462,131,116,870/124,584,715.44 - Step 6: Final answer
x = 98,884,217.76
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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.