Finding the Fourth Proportional to 105,153,788.23, 157,589,691.43 and 81,838,683.99
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Solution
The fourth proportional to 105,153,788.23, 157,589,691.43 and 81,838,683.99 is: 122,648,296.12
Step by Step Solution
- Step 1: Write the proportion equation
105,153,788.23 : 157,589,691.43 = 81,838,683.99 : x - Step 2: Convert to fraction form
105,153,788.23/157,589,691.43 = 81,838,683.99/x - Step 3: Cross multiply
105,153,788.23x = 157,589,691.43 × 81,838,683.99 - Step 4: Simplify right side
105,153,788.23x = 12,896,932,956,969,820 - Step 5: Solve for x
x = 12,896,932,956,969,820/105,153,788.23 - Step 6: Final answer
x = 122,648,296.12
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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.