Finding the Fourth Proportional to 135,336,956.21, 186,759,998.55 and 73,455,966.17
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Solution
The fourth proportional to 135,336,956.21, 186,759,998.55 and 73,455,966.17 is: 101,366,518.94
Step by Step Solution
- Step 1: Write the proportion equation
135,336,956.21 : 186,759,998.55 = 73,455,966.17 : x - Step 2: Convert to fraction form
135,336,956.21/186,759,998.55 = 73,455,966.17/x - Step 3: Cross multiply
135,336,956.21x = 186,759,998.55 × 73,455,966.17 - Step 4: Simplify right side
135,336,956.21x = 13,718,636,134,464,252 - Step 5: Solve for x
x = 13,718,636,134,464,252/135,336,956.21 - Step 6: Final answer
x = 101,366,518.94
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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.