Finding the Fourth Proportional to 212,735,073.60, 319,354,552.80 and 120,692,116.80
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Solution
The fourth proportional to 212,735,073.60, 319,354,552.80 and 120,692,116.80 is: 181,181,111.02
Step by Step Solution
- Step 1: Write the proportion equation
212,735,073.60 : 319,354,552.80 = 120,692,116.80 : x - Step 2: Convert to fraction form
212,735,073.60/319,354,552.80 = 120,692,116.80/x - Step 3: Cross multiply
212,735,073.60x = 319,354,552.80 × 120,692,116.80 - Step 4: Simplify right side
212,735,073.60x = 38,543,576,987,149,368 - Step 5: Solve for x
x = 38,543,576,987,149,368/212,735,073.60 - Step 6: Final answer
x = 181,181,111.02
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.