Finding the Fourth Proportional to 282,855,471.26, 390,337,730.12 and 157,405,518.41
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Solution
The fourth proportional to 282,855,471.26, 390,337,730.12 and 157,405,518.41 is: 217,218,045.98
Step by Step Solution
- Step 1: Write the proportion equation
282,855,471.26 : 390,337,730.12 = 157,405,518.41 : x - Step 2: Convert to fraction form
282,855,471.26/390,337,730.12 = 157,405,518.41/x - Step 3: Cross multiply
282,855,471.26x = 390,337,730.12 × 157,405,518.41 - Step 4: Simplify right side
282,855,471.26x = 61,441,312,761,782,560 - Step 5: Solve for x
x = 61,441,312,761,782,560/282,855,471.26 - Step 6: Final answer
x = 217,218,045.98
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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.