Finding the Fourth Proportional to 783,539,266.38, 1,174,017,489.43 and 455,092,785.15
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Solution
The fourth proportional to 783,539,266.38, 1,174,017,489.43 and 455,092,785.15 is: 681,889,104.99
Step by Step Solution
- Step 1: Write the proportion equation
783,539,266.38 : 1,174,017,489.43 = 455,092,785.15 : x - Step 2: Convert to fraction form
783,539,266.38/1,174,017,489.43 = 455,092,785.15/x - Step 3: Cross multiply
783,539,266.38x = 1,174,017,489.43 × 455,092,785.15 - Step 4: Simplify right side
783,539,266.38x = 534,286,889,074,833,792 - Step 5: Solve for x
x = 534,286,889,074,833,792/783,539,266.38 - Step 6: Final answer
x = 681,889,104.99
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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.