Finding the Fourth Proportional to 221,225,877.47, 305,246,134.14 and 127,121,843.58
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Solution
The fourth proportional to 221,225,877.47, 305,246,134.14 and 127,121,843.58 is: 175,401,954.60
Step by Step Solution
- Step 1: Write the proportion equation
221,225,877.47 : 305,246,134.14 = 127,121,843.58 : x - Step 2: Convert to fraction form
221,225,877.47/305,246,134.14 = 127,121,843.58/x - Step 3: Cross multiply
221,225,877.47x = 305,246,134.14 × 127,121,843.58 - Step 4: Simplify right side
221,225,877.47x = 38,803,451,316,639,088 - Step 5: Solve for x
x = 38,803,451,316,639,088/221,225,877.47 - Step 6: Final answer
x = 175,401,954.60
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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.