Finding the Fourth Proportional to 276,309,254, 381,340,207.74 and 157,260,792.68
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Solution
The fourth proportional to 276,309,254, 381,340,207.74 and 157,260,792.68 is: 217,038,924.62
Step by Step Solution
- Step 1: Write the proportion equation
276,309,254 : 381,340,207.74 = 157,260,792.68 : x - Step 2: Convert to fraction form
276,309,254/381,340,207.74 = 157,260,792.68/x - Step 3: Cross multiply
276,309,254x = 381,340,207.74 × 157,260,792.68 - Step 4: Simplify right side
276,309,254x = 59,969,863,349,948,272 - Step 5: Solve for x
x = 59,969,863,349,948,272/276,309,254 - Step 6: Final answer
x = 217,038,924.62
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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.