Finding the Fourth Proportional to 130,849,208.59, 180,571,936.28 and 71,310,518.80
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Solution
The fourth proportional to 130,849,208.59, 180,571,936.28 and 71,310,518.80 is: 98,408,531.44
Step by Step Solution
- Step 1: Write the proportion equation
130,849,208.59 : 180,571,936.28 = 71,310,518.80 : x - Step 2: Convert to fraction form
130,849,208.59/180,571,936.28 = 71,310,518.80/x - Step 3: Cross multiply
130,849,208.59x = 180,571,936.28 × 71,310,518.80 - Step 4: Simplify right side
130,849,208.59x = 12,876,678,456,847,342 - Step 5: Solve for x
x = 12,876,678,456,847,342/130,849,208.59 - Step 6: Final answer
x = 98,408,531.44
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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.