Finding the Fourth Proportional to 869,185,320.10, 1,303,777,980.15 and 593,686,305.70
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Solution
The fourth proportional to 869,185,320.10, 1,303,777,980.15 and 593,686,305.70 is: 890,529,458.55
Step by Step Solution
- Step 1: Write the proportion equation
869,185,320.10 : 1,303,777,980.15 = 593,686,305.70 : x - Step 2: Convert to fraction form
869,185,320.10/1,303,777,980.15 = 593,686,305.70/x - Step 3: Cross multiply
869,185,320.10x = 1,303,777,980.15 × 593,686,305.70 - Step 4: Simplify right side
869,185,320.10x = 774,035,132,488,261,504 - Step 5: Solve for x
x = 774,035,132,488,261,504/869,185,320.10 - Step 6: Final answer
x = 890,529,458.55
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Double scale
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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.