Finding the Fourth Proportional to 18,924,448.74, 28,386,670.17 and 4,547,516.70
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Solution
The fourth proportional to 18,924,448.74, 28,386,670.17 and 4,547,516.70 is: 6,821,274.34
Step by Step Solution
- Step 1: Write the proportion equation
18,924,448.74 : 28,386,670.17 = 4,547,516.70 : x - Step 2: Convert to fraction form
18,924,448.74/28,386,670.17 = 4,547,516.70/x - Step 3: Cross multiply
18,924,448.74x = 28,386,670.17 × 4,547,516.70 - Step 4: Simplify right side
18,924,448.74x = 129,088,856,655,466.86 - Step 5: Solve for x
x = 129,088,856,655,466.86/18,924,448.74 - Step 6: Final answer
x = 6,821,274.34
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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.