Finding the Fourth Proportional to 103,462,586.92, 142,781,816.84 and 56,422,233.84
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Solution
The fourth proportional to 103,462,586.92, 142,781,816.84 and 56,422,233.84 is: 77,864,562.42
Step by Step Solution
- Step 1: Write the proportion equation
103,462,586.92 : 142,781,816.84 = 56,422,233.84 : x - Step 2: Convert to fraction form
103,462,586.92/142,781,816.84 = 56,422,233.84/x - Step 3: Cross multiply
103,462,586.92x = 142,781,816.84 × 56,422,233.84 - Step 4: Simplify right side
103,462,586.92x = 8,056,069,057,846,531 - Step 5: Solve for x
x = 8,056,069,057,846,531/103,462,586.92 - Step 6: Final answer
x = 77,864,562.42
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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.