Finding the Fourth Proportional to 276,163,459.78, 381,104,793.30 and 152,403,251.98
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Solution
The fourth proportional to 276,163,459.78, 381,104,793.30 and 152,403,251.98 is: 210,316,056.62
Step by Step Solution
- Step 1: Write the proportion equation
276,163,459.78 : 381,104,793.30 = 152,403,251.98 : x - Step 2: Convert to fraction form
276,163,459.78/381,104,793.30 = 152,403,251.98/x - Step 3: Cross multiply
276,163,459.78x = 381,104,793.30 × 152,403,251.98 - Step 4: Simplify right side
276,163,459.78x = 58,081,609,844,085,712 - Step 5: Solve for x
x = 58,081,609,844,085,712/276,163,459.78 - Step 6: Final answer
x = 210,316,056.62
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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.