Finding the Fourth Proportional to 577,368,339.80, 866,052,509.70 and 543,356,115.80
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Solution
The fourth proportional to 577,368,339.80, 866,052,509.70 and 543,356,115.80 is: 815,034,173.70
Step by Step Solution
- Step 1: Write the proportion equation
577,368,339.80 : 866,052,509.70 = 543,356,115.80 : x - Step 2: Convert to fraction form
577,368,339.80/866,052,509.70 = 543,356,115.80/x - Step 3: Cross multiply
577,368,339.80x = 866,052,509.70 × 543,356,115.80 - Step 4: Simplify right side
577,368,339.80x = 470,574,927,749,433,792 - Step 5: Solve for x
x = 470,574,927,749,433,792/577,368,339.80 - Step 6: Final answer
x = 815,034,173.70
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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.