Finding the Fourth Proportional to 874,194,655.61, 1,206,457,394.51 and 497,867,155.49
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Solution
The fourth proportional to 874,194,655.61, 1,206,457,394.51 and 497,867,155.49 is: 687,095,840.00
Step by Step Solution
- Step 1: Write the proportion equation
874,194,655.61 : 1,206,457,394.51 = 497,867,155.49 : x - Step 2: Convert to fraction form
874,194,655.61/1,206,457,394.51 = 497,867,155.49/x - Step 3: Cross multiply
874,194,655.61x = 1,206,457,394.51 × 497,867,155.49 - Step 4: Simplify right side
874,194,655.61x = 600,655,511,219,782,912 - Step 5: Solve for x
x = 600,655,511,219,782,912/874,194,655.61 - Step 6: Final answer
x = 687,095,840.00
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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.