Finding the Fourth Proportional to 109,183,235.80, 163,774,853.70 and 51,787,607.80
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Solution
The fourth proportional to 109,183,235.80, 163,774,853.70 and 51,787,607.80 is: 77,681,411.70
Step by Step Solution
- Step 1: Write the proportion equation
109,183,235.80 : 163,774,853.70 = 51,787,607.80 : x - Step 2: Convert to fraction form
109,183,235.80/163,774,853.70 = 51,787,607.80/x - Step 3: Cross multiply
109,183,235.80x = 163,774,853.70 × 51,787,607.80 - Step 4: Simplify right side
109,183,235.80x = 8,481,507,890,917,978 - Step 5: Solve for x
x = 8,481,507,890,917,978/109,183,235.80 - Step 6: Final answer
x = 77,681,411.70
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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.