Finding the Fourth Proportional to 575,928,178.98, 794,780,874.64 and 311,610,172.09
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Solution
The fourth proportional to 575,928,178.98, 794,780,874.64 and 311,610,172.09 is: 430,022,030.79
Step by Step Solution
- Step 1: Write the proportion equation
575,928,178.98 : 794,780,874.64 = 311,610,172.09 : x - Step 2: Convert to fraction form
575,928,178.98/794,780,874.64 = 311,610,172.09/x - Step 3: Cross multiply
575,928,178.98x = 794,780,874.64 × 311,610,172.09 - Step 4: Simplify right side
575,928,178.98x = 247,661,805,117,186,464 - Step 5: Solve for x
x = 247,661,805,117,186,464/575,928,178.98 - Step 6: Final answer
x = 430,022,030.79
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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.