Finding the Fourth Proportional to 67,918,330.76, 93,729,602.79 and 38,154,235.46
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Solution
The fourth proportional to 67,918,330.76, 93,729,602.79 and 38,154,235.46 is: 52,654,140.56
Step by Step Solution
- Step 1: Write the proportion equation
67,918,330.76 : 93,729,602.79 = 38,154,235.46 : x - Step 2: Convert to fraction form
67,918,330.76/93,729,602.79 = 38,154,235.46/x - Step 3: Cross multiply
67,918,330.76x = 93,729,602.79 × 38,154,235.46 - Step 4: Simplify right side
67,918,330.76x = 3,576,181,333,953,285 - Step 5: Solve for x
x = 3,576,181,333,953,285/67,918,330.76 - Step 6: Final answer
x = 52,654,140.56
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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.