Finding the Fourth Proportional to 2,124,666,211.80, 3,186,999,317.70 and 744,301,358.40
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Solution
The fourth proportional to 2,124,666,211.80, 3,186,999,317.70 and 744,301,358.40 is: 1,116,452,037.60
Step by Step Solution
- Step 1: Write the proportion equation
2,124,666,211.80 : 3,186,999,317.70 = 744,301,358.40 : x - Step 2: Convert to fraction form
2,124,666,211.80/3,186,999,317.70 = 744,301,358.40/x - Step 3: Cross multiply
2,124,666,211.80x = 3,186,999,317.70 × 744,301,358.40 - Step 4: Simplify right side
2,124,666,211.80x = 2,372,087,921,383,983,104 - Step 5: Solve for x
x = 2,372,087,921,383,983,104/2,124,666,211.80 - Step 6: Final answer
x = 1,116,452,037.60
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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.