Finding the Fourth Proportional to 3,028,812,812.70, 4,543,219,219.05 and 958,696,590.30
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Solution
The fourth proportional to 3,028,812,812.70, 4,543,219,219.05 and 958,696,590.30 is: 1,438,044,885.45
Step by Step Solution
- Step 1: Write the proportion equation
3,028,812,812.70 : 4,543,219,219.05 = 958,696,590.30 : x - Step 2: Convert to fraction form
3,028,812,812.70/4,543,219,219.05 = 958,696,590.30/x - Step 3: Cross multiply
3,028,812,812.70x = 4,543,219,219.05 × 958,696,590.30 - Step 4: Simplify right side
3,028,812,812.70x = 4,355,568,774,288,663,552 - Step 5: Solve for x
x = 4,355,568,774,288,663,552/3,028,812,812.70 - Step 6: Final answer
x = 1,438,044,885.45
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1.5x scale
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.