Finding the Fourth Proportional to 81,679,458.96, 122,445,032.40 and 40,751,416.08
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Solution
The fourth proportional to 81,679,458.96, 122,445,032.40 and 40,751,416.08 is: 61,090,126.28
Step by Step Solution
- Step 1: Write the proportion equation
81,679,458.96 : 122,445,032.40 = 40,751,416.08 : x - Step 2: Convert to fraction form
81,679,458.96/122,445,032.40 = 40,751,416.08/x - Step 3: Cross multiply
81,679,458.96x = 122,445,032.40 × 40,751,416.08 - Step 4: Simplify right side
81,679,458.96x = 4,989,808,462,261,481 - Step 5: Solve for x
x = 4,989,808,462,261,481/81,679,458.96 - Step 6: Final answer
x = 61,090,126.28
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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.