Finding the Fourth Proportional to 96,876,390.80, 145,516,762.20 and 81,759,846.80
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Solution
The fourth proportional to 96,876,390.80, 145,516,762.20 and 81,759,846.80 is: 122,810,398.76
Step by Step Solution
- Step 1: Write the proportion equation
96,876,390.80 : 145,516,762.20 = 81,759,846.80 : x - Step 2: Convert to fraction form
96,876,390.80/145,516,762.20 = 81,759,846.80/x - Step 3: Cross multiply
96,876,390.80x = 145,516,762.20 × 81,759,846.80 - Step 4: Simplify right side
96,876,390.80x = 11,897,428,184,304,030 - Step 5: Solve for x
x = 11,897,428,184,304,030/96,876,390.80 - Step 6: Final answer
x = 122,810,398.76
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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.