Finding the Fourth Proportional to 539,430,703.38, 744,414,371.55 and 291,912,057.54
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Solution
The fourth proportional to 539,430,703.38, 744,414,371.55 and 291,912,057.54 is: 402,838,639.88
Step by Step Solution
- Step 1: Write the proportion equation
539,430,703.38 : 744,414,371.55 = 291,912,057.54 : x - Step 2: Convert to fraction form
539,430,703.38/744,414,371.55 = 291,912,057.54/x - Step 3: Cross multiply
539,430,703.38x = 744,414,371.55 × 291,912,057.54 - Step 4: Simplify right side
539,430,703.38x = 217,303,530,861,506,528 - Step 5: Solve for x
x = 217,303,530,861,506,528/539,430,703.38 - Step 6: Final answer
x = 402,838,639.88
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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.