Finding the Fourth Proportional to 145,655,134.70, 218,482,702.05 and 77,630,686.70
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Solution
The fourth proportional to 145,655,134.70, 218,482,702.05 and 77,630,686.70 is: 116,446,030.05
Step by Step Solution
- Step 1: Write the proportion equation
145,655,134.70 : 218,482,702.05 = 77,630,686.70 : x - Step 2: Convert to fraction form
145,655,134.70/218,482,702.05 = 77,630,686.70/x - Step 3: Cross multiply
145,655,134.70x = 218,482,702.05 × 77,630,686.70 - Step 4: Simplify right side
145,655,134.70x = 16,960,962,192,213,000 - Step 5: Solve for x
x = 16,960,962,192,213,000/145,655,134.70 - Step 6: Final answer
x = 116,446,030.05
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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.