Finding the Fourth Proportional to 98,069,944.08, 135,336,516.32 and 56,840,751.28
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Solution
The fourth proportional to 98,069,944.08, 135,336,516.32 and 56,840,751.28 is: 78,440,232.99
Step by Step Solution
- Step 1: Write the proportion equation
98,069,944.08 : 135,336,516.32 = 56,840,751.28 : x - Step 2: Convert to fraction form
98,069,944.08/135,336,516.32 = 56,840,751.28/x - Step 3: Cross multiply
98,069,944.08x = 135,336,516.32 × 56,840,751.28 - Step 4: Simplify right side
98,069,944.08x = 7,692,629,263,246,781 - Step 5: Solve for x
x = 7,692,629,263,246,781/98,069,944.08 - Step 6: Final answer
x = 78,440,232.99
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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.