Finding the Fourth Proportional to 2,239,901,475.68, 3,360,013,656.56 and 859,715,985.76
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Solution
The fourth proportional to 2,239,901,475.68, 3,360,013,656.56 and 859,715,985.76 is: 1,289,635,943.49
Step by Step Solution
- Step 1: Write the proportion equation
2,239,901,475.68 : 3,360,013,656.56 = 859,715,985.76 : x - Step 2: Convert to fraction form
2,239,901,475.68/3,360,013,656.56 = 859,715,985.76/x - Step 3: Cross multiply
2,239,901,475.68x = 3,360,013,656.56 × 859,715,985.76 - Step 4: Simplify right side
2,239,901,475.68x = 2,888,657,452,916,542,464 - Step 5: Solve for x
x = 2,888,657,452,916,542,464/2,239,901,475.68 - Step 6: Final answer
x = 1,289,635,943.49
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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.