Finding the Fourth Proportional to 455,740,606.95, 683,531,692.50 and 128,138,369.61
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Solution
The fourth proportional to 455,740,606.95, 683,531,692.50 and 128,138,369.61 is: 192,185,281.09
Step by Step Solution
- Step 1: Write the proportion equation
455,740,606.95 : 683,531,692.50 = 128,138,369.61 : x - Step 2: Convert to fraction form
455,740,606.95/683,531,692.50 = 128,138,369.61/x - Step 3: Cross multiply
455,740,606.95x = 683,531,692.50 × 128,138,369.61 - Step 4: Simplify right side
455,740,606.95x = 87,586,636,649,905,856 - Step 5: Solve for x
x = 87,586,636,649,905,856/455,740,606.95 - Step 6: Final answer
x = 192,185,281.09
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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.