Finding the Fourth Proportional to 100,989,005.12, 139,365,466.08 and 54,579,150.08
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Solution
The fourth proportional to 100,989,005.12, 139,365,466.08 and 54,579,150.08 is: 75,319,572.46
Step by Step Solution
- Step 1: Write the proportion equation
100,989,005.12 : 139,365,466.08 = 54,579,150.08 : x - Step 2: Convert to fraction form
100,989,005.12/139,365,466.08 = 54,579,150.08/x - Step 3: Cross multiply
100,989,005.12x = 139,365,466.08 × 54,579,150.08 - Step 4: Simplify right side
100,989,005.12x = 7,606,448,689,149,470 - Step 5: Solve for x
x = 7,606,448,689,149,470/100,989,005.12 - Step 6: Final answer
x = 75,319,572.46
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.