Finding the Fourth Proportional to 746,496,744.90, 1,119,745,117.35 and 698,721,000.90
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Solution
The fourth proportional to 746,496,744.90, 1,119,745,117.35 and 698,721,000.90 is: 1,048,081,501.35
Step by Step Solution
- Step 1: Write the proportion equation
746,496,744.90 : 1,119,745,117.35 = 698,721,000.90 : x - Step 2: Convert to fraction form
746,496,744.90/1,119,745,117.35 = 698,721,000.90/x - Step 3: Cross multiply
746,496,744.90x = 1,119,745,117.35 × 698,721,000.90 - Step 4: Simplify right side
746,496,744.90x = 782,389,429,147,679,872 - Step 5: Solve for x
x = 782,389,429,147,679,872/746,496,744.90 - Step 6: Final answer
x = 1,048,081,501.35
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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.