Finding the Fourth Proportional to 7,908,313,121.21, 10,912,750,773.23 and 4,692,668,983.46
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Solution
The fourth proportional to 7,908,313,121.21, 10,912,750,773.23 and 4,692,668,983.46 is: 6,475,455,168.88
Step by Step Solution
- Step 1: Write the proportion equation
7,908,313,121.21 : 10,912,750,773.23 = 4,692,668,983.46 : x - Step 2: Convert to fraction form
7,908,313,121.21/10,912,750,773.23 = 4,692,668,983.46/x - Step 3: Cross multiply
7,908,313,121.21x = 10,912,750,773.23 × 4,692,668,983.46 - Step 4: Simplify right side
7,908,313,121.21x = 51,209,927,077,805,826,048 - Step 5: Solve for x
x = 51,209,927,077,805,826,048/7,908,313,121.21 - Step 6: Final answer
x = 6,475,455,168.88
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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.