Finding the Fourth Proportional to 761,366,615.99, 1,051,030,202.70 and 479,523,266.30
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Solution
The fourth proportional to 761,366,615.99, 1,051,030,202.70 and 479,523,266.30 is: 661,958,937.00
Step by Step Solution
- Step 1: Write the proportion equation
761,366,615.99 : 1,051,030,202.70 = 479,523,266.30 : x - Step 2: Convert to fraction form
761,366,615.99/1,051,030,202.70 = 479,523,266.30/x - Step 3: Cross multiply
761,366,615.99x = 1,051,030,202.70 × 479,523,266.30 - Step 4: Simplify right side
761,366,615.99x = 503,993,435,783,104,832 - Step 5: Solve for x
x = 503,993,435,783,104,832/761,366,615.99 - Step 6: Final answer
x = 661,958,937.00
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Double scale
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.