Finding the Fourth Proportional to 1,260,379,406.10, 1,739,325,987.36 and 695,865,379.80
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Solution
The fourth proportional to 1,260,379,406.10, 1,739,325,987.36 and 695,865,379.80 is: 960,295,553.02
Step by Step Solution
- Step 1: Write the proportion equation
1,260,379,406.10 : 1,739,325,987.36 = 695,865,379.80 : x - Step 2: Convert to fraction form
1,260,379,406.10/1,739,325,987.36 = 695,865,379.80/x - Step 3: Cross multiply
1,260,379,406.10x = 1,739,325,987.36 × 695,865,379.80 - Step 4: Simplify right side
1,260,379,406.10x = 1,210,336,738,790,276,352 - Step 5: Solve for x
x = 1,210,336,738,790,276,352/1,260,379,406.10 - Step 6: Final answer
x = 960,295,553.02
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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.