Finding the Fourth Proportional to 6,484,188,890.70, 8,948,188,321.56 and 3,513,965,141.70
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Solution
The fourth proportional to 6,484,188,890.70, 8,948,188,321.56 and 3,513,965,141.70 is: 4,849,276,042.59
Step by Step Solution
- Step 1: Write the proportion equation
6,484,188,890.70 : 8,948,188,321.56 = 3,513,965,141.70 : x - Step 2: Convert to fraction form
6,484,188,890.70/8,948,188,321.56 = 3,513,965,141.70/x - Step 3: Cross multiply
6,484,188,890.70x = 8,948,188,321.56 × 3,513,965,141.70 - Step 4: Simplify right side
6,484,188,890.70x = 31,443,621,843,328,868,352 - Step 5: Solve for x
x = 31,443,621,843,328,868,352/6,484,188,890.70 - Step 6: Final answer
x = 4,849,276,042.59
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1.5x scale
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.