Finding the Fourth Proportional to 279,855,133.20, 386,323,937.73 and 180,784,197.09
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Solution
The fourth proportional to 279,855,133.20, 386,323,937.73 and 180,784,197.09 is: 249,562,200.63
Step by Step Solution
- Step 1: Write the proportion equation
279,855,133.20 : 386,323,937.73 = 180,784,197.09 : x - Step 2: Convert to fraction form
279,855,133.20/386,323,937.73 = 180,784,197.09/x - Step 3: Cross multiply
279,855,133.20x = 386,323,937.73 × 180,784,197.09 - Step 4: Simplify right side
279,855,133.20x = 69,841,262,899,165,216 - Step 5: Solve for x
x = 69,841,262,899,165,216/279,855,133.20 - Step 6: Final answer
x = 249,562,200.63
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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.