Finding the Fourth Proportional to 100,343,449.08, 138,442,926.32 and 58,497,894.43
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Solution
The fourth proportional to 100,343,449.08, 138,442,926.32 and 58,497,894.43 is: 80,709,002.56
Step by Step Solution
- Step 1: Write the proportion equation
100,343,449.08 : 138,442,926.32 = 58,497,894.43 : x - Step 2: Convert to fraction form
100,343,449.08/138,442,926.32 = 58,497,894.43/x - Step 3: Cross multiply
100,343,449.08x = 138,442,926.32 × 58,497,894.43 - Step 4: Simplify right side
100,343,449.08x = 8,098,619,688,447,628 - Step 5: Solve for x
x = 8,098,619,688,447,628/100,343,449.08 - Step 6: Final answer
x = 80,709,002.56
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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.