Finding the Fourth Proportional to 757,165,316.88, 1,044,898,289.68 and 427,139,435.28
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Solution
The fourth proportional to 757,165,316.88, 1,044,898,289.68 and 427,139,435.28 is: 589,458,147.95
Step by Step Solution
- Step 1: Write the proportion equation
757,165,316.88 : 1,044,898,289.68 = 427,139,435.28 : x - Step 2: Convert to fraction form
757,165,316.88/1,044,898,289.68 = 427,139,435.28/x - Step 3: Cross multiply
757,165,316.88x = 1,044,898,289.68 × 427,139,435.28 - Step 4: Simplify right side
757,165,316.88x = 446,317,265,378,953,024 - Step 5: Solve for x
x = 446,317,265,378,953,024/757,165,316.88 - Step 6: Final answer
x = 589,458,147.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.