Finding the Fourth Proportional to 873,468,263.90, 1,310,202,395.85 and 414,303,239.90
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Solution
The fourth proportional to 873,468,263.90, 1,310,202,395.85 and 414,303,239.90 is: 621,454,859.85
Step by Step Solution
- Step 1: Write the proportion equation
873,468,263.90 : 1,310,202,395.85 = 414,303,239.90 : x - Step 2: Convert to fraction form
873,468,263.90/1,310,202,395.85 = 414,303,239.90/x - Step 3: Cross multiply
873,468,263.90x = 1,310,202,395.85 × 414,303,239.90 - Step 4: Simplify right side
873,468,263.90x = 542,821,097,525,397,248 - Step 5: Solve for x
x = 542,821,097,525,397,248/873,468,263.90 - Step 6: Final answer
x = 621,454,859.85
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Similar ratio
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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.