Finding the Fourth Proportional to 5,280,876,069.80, 7,921,314,104.70 and 1,403,482,533.80
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Solution
The fourth proportional to 5,280,876,069.80, 7,921,314,104.70 and 1,403,482,533.80 is: 2,105,223,800.70
Step by Step Solution
- Step 1: Write the proportion equation
5,280,876,069.80 : 7,921,314,104.70 = 1,403,482,533.80 : x - Step 2: Convert to fraction form
5,280,876,069.80/7,921,314,104.70 = 1,403,482,533.80/x - Step 3: Cross multiply
5,280,876,069.80x = 7,921,314,104.70 × 1,403,482,533.80 - Step 4: Simplify right side
5,280,876,069.80x = 11,117,425,990,690,033,664 - Step 5: Solve for x
x = 11,117,425,990,690,033,664/5,280,876,069.80 - Step 6: Final answer
x = 2,105,223,800.70
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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.