Finding the Fourth Proportional to 74,128,237.20, 102,296,790.24 and 40,637,656.44
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Solution
The fourth proportional to 74,128,237.20, 102,296,790.24 and 40,637,656.44 is: 56,079,868.80
Step by Step Solution
- Step 1: Write the proportion equation
74,128,237.20 : 102,296,790.24 = 40,637,656.44 : x - Step 2: Convert to fraction form
74,128,237.20/102,296,790.24 = 40,637,656.44/x - Step 3: Cross multiply
74,128,237.20x = 102,296,790.24 × 40,637,656.44 - Step 4: Simplify right side
74,128,237.20x = 4,157,101,816,687,864.50 - Step 5: Solve for x
x = 4,157,101,816,687,864.50/74,128,237.20 - Step 6: Final answer
x = 56,079,868.80
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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.