Finding the Fourth Proportional to 140,466,473.49, 193,844,148.14 and 77,746,927.68
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Solution
The fourth proportional to 140,466,473.49, 193,844,148.14 and 77,746,927.68 is: 107,290,989.74
Step by Step Solution
- Step 1: Write the proportion equation
140,466,473.49 : 193,844,148.14 = 77,746,927.68 : x - Step 2: Convert to fraction form
140,466,473.49/193,844,148.14 = 77,746,927.68/x - Step 3: Cross multiply
140,466,473.49x = 193,844,148.14 × 77,746,927.68 - Step 4: Simplify right side
140,466,473.49x = 15,070,786,966,631,786 - Step 5: Solve for x
x = 15,070,786,966,631,786/140,466,473.49 - Step 6: Final answer
x = 107,290,989.74
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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.