Finding the Fourth Proportional to 74,720,386.10, 112,112,949.99 and 40,136,438.62
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Solution
The fourth proportional to 74,720,386.10, 112,112,949.99 and 40,136,438.62 is: 60,222,046.09
Step by Step Solution
- Step 1: Write the proportion equation
74,720,386.10 : 112,112,949.99 = 40,136,438.62 : x - Step 2: Convert to fraction form
74,720,386.10/112,112,949.99 = 40,136,438.62/x - Step 3: Cross multiply
74,720,386.10x = 112,112,949.99 × 40,136,438.62 - Step 4: Simplify right side
74,720,386.10x = 4,499,814,536,071,418 - Step 5: Solve for x
x = 4,499,814,536,071,418/74,720,386.10 - Step 6: Final answer
x = 60,222,046.09
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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.