Finding the Fourth Proportional to 861,762,512.20, 1,293,019,385.58 and 301,925,963.48
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Solution
The fourth proportional to 861,762,512.20, 1,293,019,385.58 and 301,925,963.48 is: 453,020,545.99
Step by Step Solution
- Step 1: Write the proportion equation
861,762,512.20 : 1,293,019,385.58 = 301,925,963.48 : x - Step 2: Convert to fraction form
861,762,512.20/1,293,019,385.58 = 301,925,963.48/x - Step 3: Cross multiply
861,762,512.20x = 1,293,019,385.58 × 301,925,963.48 - Step 4: Simplify right side
861,762,512.20x = 390,396,123,789,559,104 - Step 5: Solve for x
x = 390,396,123,789,559,104/861,762,512.20 - Step 6: Final answer
x = 453,020,545.99
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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.