Finding the Fourth Proportional to 651,657,379.70, 977,486,069.55 and 651,657,379.70
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Solution
The fourth proportional to 651,657,379.70, 977,486,069.55 and 651,657,379.70 is: 977,486,069.55
Step by Step Solution
- Step 1: Write the proportion equation
651,657,379.70 : 977,486,069.55 = 651,657,379.70 : x - Step 2: Convert to fraction form
651,657,379.70/977,486,069.55 = 651,657,379.70/x - Step 3: Cross multiply
651,657,379.70x = 977,486,069.55 × 651,657,379.70 - Step 4: Simplify right side
651,657,379.70x = 636,986,010,776,204,928 - Step 5: Solve for x
x = 636,986,010,776,204,928/651,657,379.70 - Step 6: Final answer
x = 977,486,069.55
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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.