Finding the Fourth Proportional to 412,339,575.81, 569,013,973.95 and 226,699,239.81
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Solution
The fourth proportional to 412,339,575.81, 569,013,973.95 and 226,699,239.81 is: 312,836,901.68
Step by Step Solution
- Step 1: Write the proportion equation
412,339,575.81 : 569,013,973.95 = 226,699,239.81 : x - Step 2: Convert to fraction form
412,339,575.81/569,013,973.95 = 226,699,239.81/x - Step 3: Cross multiply
412,339,575.81x = 569,013,973.95 × 226,699,239.81 - Step 4: Simplify right side
412,339,575.81x = 128,995,035,335,732,160 - Step 5: Solve for x
x = 128,995,035,335,732,160/412,339,575.81 - Step 6: Final answer
x = 312,836,901.68
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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.