Finding the Fourth Proportional to 1,680,965,554.08, 2,519,442,284.40 and 782,363,134.56
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Solution
The fourth proportional to 1,680,965,554.08, 2,519,442,284.40 and 782,363,134.56 is: 1,172,611,037.85
Step by Step Solution
- Step 1: Write the proportion equation
1,680,965,554.08 : 2,519,442,284.40 = 782,363,134.56 : x - Step 2: Convert to fraction form
1,680,965,554.08/2,519,442,284.40 = 782,363,134.56/x - Step 3: Cross multiply
1,680,965,554.08x = 2,519,442,284.40 × 782,363,134.56 - Step 4: Simplify right side
1,680,965,554.08x = 1,971,118,762,966,190,848 - Step 5: Solve for x
x = 1,971,118,762,966,190,848/1,680,965,554.08 - Step 6: Final answer
x = 1,172,611,037.85
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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.