Finding the Fourth Proportional to 147,615,743.70, 221,423,615.55 and 38,440,703.70
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Solution
The fourth proportional to 147,615,743.70, 221,423,615.55 and 38,440,703.70 is: 57,661,055.55
Step by Step Solution
- Step 1: Write the proportion equation
147,615,743.70 : 221,423,615.55 = 38,440,703.70 : x - Step 2: Convert to fraction form
147,615,743.70/221,423,615.55 = 38,440,703.70/x - Step 3: Cross multiply
147,615,743.70x = 221,423,615.55 × 38,440,703.70 - Step 4: Simplify right side
147,615,743.70x = 8,511,679,597,540,264 - Step 5: Solve for x
x = 8,511,679,597,540,264/147,615,743.70 - Step 6: Final answer
x = 57,661,055.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.