Finding the Fourth Proportional to 147,822,478.84, 203,996,341.68 and 81,747,422.20
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Solution
The fourth proportional to 147,822,478.84, 203,996,341.68 and 81,747,422.20 is: 112,812,173.10
Step by Step Solution
- Step 1: Write the proportion equation
147,822,478.84 : 203,996,341.68 = 81,747,422.20 : x - Step 2: Convert to fraction form
147,822,478.84/203,996,341.68 = 81,747,422.20/x - Step 3: Cross multiply
147,822,478.84x = 203,996,341.68 × 81,747,422.20 - Step 4: Simplify right side
147,822,478.84x = 16,676,175,070,570,418 - Step 5: Solve for x
x = 16,676,175,070,570,418/147,822,478.84 - Step 6: Final answer
x = 112,812,173.10
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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.