Finding the Fourth Proportional to 268,585,786.76, 402,878,645.80 and 74,497,200.98
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Solution
The fourth proportional to 268,585,786.76, 402,878,645.80 and 74,497,200.98 is: 111,745,791.95
Step by Step Solution
- Step 1: Write the proportion equation
268,585,786.76 : 402,878,645.80 = 74,497,200.98 : x - Step 2: Convert to fraction form
268,585,786.76/402,878,645.80 = 74,497,200.98/x - Step 3: Cross multiply
268,585,786.76x = 402,878,645.80 × 74,497,200.98 - Step 4: Simplify right side
268,585,786.76x = 30,013,331,446,712,836 - Step 5: Solve for x
x = 30,013,331,446,712,836/268,585,786.76 - Step 6: Final answer
x = 111,745,791.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.