Finding the Fourth Proportional to 7,892,278,437.15, 10,892,747,566.29 and 4,720,811,267.49
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Solution
The fourth proportional to 7,892,278,437.15, 10,892,747,566.29 and 4,720,811,267.49 is: 6,515,558,954.79
Step by Step Solution
- Step 1: Write the proportion equation
7,892,278,437.15 : 10,892,747,566.29 = 4,720,811,267.49 : x - Step 2: Convert to fraction form
7,892,278,437.15/10,892,747,566.29 = 4,720,811,267.49/x - Step 3: Cross multiply
7,892,278,437.15x = 10,892,747,566.29 × 4,720,811,267.49 - Step 4: Simplify right side
7,892,278,437.15x = 51,422,605,444,866,113,536 - Step 5: Solve for x
x = 51,422,605,444,866,113,536/7,892,278,437.15 - Step 6: Final answer
x = 6,515,558,954.79
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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.