Finding the Fourth Proportional to 2,987,029,285.60, 4,480,543,928.40 and 805,991,922.40
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Solution
The fourth proportional to 2,987,029,285.60, 4,480,543,928.40 and 805,991,922.40 is: 1,208,987,883.60
Step by Step Solution
- Step 1: Write the proportion equation
2,987,029,285.60 : 4,480,543,928.40 = 805,991,922.40 : x - Step 2: Convert to fraction form
2,987,029,285.60/4,480,543,928.40 = 805,991,922.40/x - Step 3: Cross multiply
2,987,029,285.60x = 4,480,543,928.40 × 805,991,922.40 - Step 4: Simplify right side
2,987,029,285.60x = 3,611,282,214,248,763,392 - Step 5: Solve for x
x = 3,611,282,214,248,763,392/2,987,029,285.60 - Step 6: Final answer
x = 1,208,987,883.60
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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.