Finding the Fourth Proportional to 53,243,519.68, 79,874,113.20 and 18,690,964.48
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Solution
The fourth proportional to 53,243,519.68, 79,874,113.20 and 18,690,964.48 is: 28,039,547.75
Step by Step Solution
- Step 1: Write the proportion equation
53,243,519.68 : 79,874,113.20 = 18,690,964.48 : x - Step 2: Convert to fraction form
53,243,519.68/79,874,113.20 = 18,690,964.48/x - Step 3: Cross multiply
53,243,519.68x = 79,874,113.20 × 18,690,964.48 - Step 4: Simplify right side
53,243,519.68x = 1,492,924,212,692,699.25 - Step 5: Solve for x
x = 1,492,924,212,692,699.25/53,243,519.68 - Step 6: Final answer
x = 28,039,547.75
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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.