Finding the Fourth Proportional to 74,745,038.80, 112,117,558.20 and 40,732,814.80
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Solution
The fourth proportional to 74,745,038.80, 112,117,558.20 and 40,732,814.80 is: 61,099,222.20
Step by Step Solution
- Step 1: Write the proportion equation
74,745,038.80 : 112,117,558.20 = 40,732,814.80 : x - Step 2: Convert to fraction form
74,745,038.80/112,117,558.20 = 40,732,814.80/x - Step 3: Cross multiply
74,745,038.80x = 112,117,558.20 × 40,732,814.80 - Step 4: Simplify right side
74,745,038.80x = 4,566,863,733,988,821 - Step 5: Solve for x
x = 4,566,863,733,988,821/74,745,038.80 - Step 6: Final answer
x = 61,099,222.20
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.