Finding the Fourth Proportional to 213,537,772.80, 320,306,659.20 and 132,916,204.80
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Solution
The fourth proportional to 213,537,772.80, 320,306,659.20 and 132,916,204.80 is: 199,374,307.20
Step by Step Solution
- Step 1: Write the proportion equation
213,537,772.80 : 320,306,659.20 = 132,916,204.80 : x - Step 2: Convert to fraction form
213,537,772.80/320,306,659.20 = 132,916,204.80/x - Step 3: Cross multiply
213,537,772.80x = 320,306,659.20 × 132,916,204.80 - Step 4: Simplify right side
213,537,772.80x = 42,573,945,513,031,000 - Step 5: Solve for x
x = 42,573,945,513,031,000/213,537,772.80 - Step 6: Final answer
x = 199,374,307.20
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.