Finding the Fourth Proportional to 315,046,028.97, 472,565,242.13 and 81,856,106.95
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Solution
The fourth proportional to 315,046,028.97, 472,565,242.13 and 81,856,106.95 is: 122,783,172.75
Step by Step Solution
- Step 1: Write the proportion equation
315,046,028.97 : 472,565,242.13 = 81,856,106.95 : x - Step 2: Convert to fraction form
315,046,028.97/472,565,242.13 = 81,856,106.95/x - Step 3: Cross multiply
315,046,028.97x = 472,565,242.13 × 81,856,106.95 - Step 4: Simplify right side
315,046,028.97x = 38,682,350,999,055,232 - Step 5: Solve for x
x = 38,682,350,999,055,232/315,046,028.97 - Step 6: Final answer
x = 122,783,172.75
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.