Finding the Fourth Proportional to 4,996,461,971.52, 6,894,880,983.72 and 2,990,402,395.92
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Solution
The fourth proportional to 4,996,461,971.52, 6,894,880,983.72 and 2,990,402,395.92 is: 4,126,613,738.05
Step by Step Solution
- Step 1: Write the proportion equation
4,996,461,971.52 : 6,894,880,983.72 = 2,990,402,395.92 : x - Step 2: Convert to fraction form
4,996,461,971.52/6,894,880,983.72 = 2,990,402,395.92/x - Step 3: Cross multiply
4,996,461,971.52x = 6,894,880,983.72 × 2,990,402,395.92 - Step 4: Simplify right side
4,996,461,971.52x = 20,618,468,613,299,535,872 - Step 5: Solve for x
x = 20,618,468,613,299,535,872/4,996,461,971.52 - Step 6: Final answer
x = 4,126,613,738.05
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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.