Finding the Fourth Proportional to 163,819,931.40, 245,729,897.10 and 147,380,689.80
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Solution
The fourth proportional to 163,819,931.40, 245,729,897.10 and 147,380,689.80 is: 221,071,034.70
Step by Step Solution
- Step 1: Write the proportion equation
163,819,931.40 : 245,729,897.10 = 147,380,689.80 : x - Step 2: Convert to fraction form
163,819,931.40/245,729,897.10 = 147,380,689.80/x - Step 3: Cross multiply
163,819,931.40x = 245,729,897.10 × 147,380,689.80 - Step 4: Simplify right side
163,819,931.40x = 36,215,841,739,081,024 - Step 5: Solve for x
x = 36,215,841,739,081,024/163,819,931.40 - Step 6: Final answer
x = 221,071,034.70
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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.