Finding the Fourth Proportional to 1,038,235,096.53, 1,432,673,643.96 and 614,772,789.21
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Solution
The fourth proportional to 1,038,235,096.53, 1,432,673,643.96 and 614,772,789.21 is: 848,332,689.84
Step by Step Solution
- Step 1: Write the proportion equation
1,038,235,096.53 : 1,432,673,643.96 = 614,772,789.21 : x - Step 2: Convert to fraction form
1,038,235,096.53/1,432,673,643.96 = 614,772,789.21/x - Step 3: Cross multiply
1,038,235,096.53x = 1,432,673,643.96 × 614,772,789.21 - Step 4: Simplify right side
1,038,235,096.53x = 880,768,772,124,943,744 - Step 5: Solve for x
x = 880,768,772,124,943,744/1,038,235,096.53 - Step 6: Final answer
x = 848,332,689.84
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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.