Finding the Fourth Proportional to 145,156,987.20, 217,735,480.80 and 49,418,875.20
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Solution
The fourth proportional to 145,156,987.20, 217,735,480.80 and 49,418,875.20 is: 74,128,312.80
Step by Step Solution
- Step 1: Write the proportion equation
145,156,987.20 : 217,735,480.80 = 49,418,875.20 : x - Step 2: Convert to fraction form
145,156,987.20/217,735,480.80 = 49,418,875.20/x - Step 3: Cross multiply
145,156,987.20x = 217,735,480.80 × 49,418,875.20 - Step 4: Simplify right side
145,156,987.20x = 10,760,242,552,267,198 - Step 5: Solve for x
x = 10,760,242,552,267,198/145,156,987.20 - Step 6: Final answer
x = 74,128,312.80
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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.