Finding the Fourth Proportional to 115,780,841.61, 159,780,335.08 and 62,859,775.63
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Solution
The fourth proportional to 115,780,841.61, 159,780,335.08 and 62,859,775.63 is: 86,747,996.24
Step by Step Solution
- Step 1: Write the proportion equation
115,780,841.61 : 159,780,335.08 = 62,859,775.63 : x - Step 2: Convert to fraction form
115,780,841.61/159,780,335.08 = 62,859,775.63/x - Step 3: Cross multiply
115,780,841.61x = 159,780,335.08 × 62,859,775.63 - Step 4: Simplify right side
115,780,841.61x = 10,043,756,012,401,600 - Step 5: Solve for x
x = 10,043,756,012,401,600/115,780,841.61 - Step 6: Final answer
x = 86,747,996.24
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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.