Finding the Fourth Proportional to 51,708,406.68, 71,357,117.94 and 28,186,939.80
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Solution
The fourth proportional to 51,708,406.68, 71,357,117.94 and 28,186,939.80 is: 38,897,713.48
Step by Step Solution
- Step 1: Write the proportion equation
51,708,406.68 : 71,357,117.94 = 28,186,939.80 : x - Step 2: Convert to fraction form
51,708,406.68/71,357,117.94 = 28,186,939.80/x - Step 3: Cross multiply
51,708,406.68x = 71,357,117.94 × 28,186,939.80 - Step 4: Simplify right side
51,708,406.68x = 2,011,338,787,676,280 - Step 5: Solve for x
x = 2,011,338,787,676,280/51,708,406.68 - Step 6: Final answer
x = 38,897,713.48
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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.