Finding the Fourth Proportional to 33,118,688.80, 45,703,792.74 and 18,434,038.96
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Solution
The fourth proportional to 33,118,688.80, 45,703,792.74 and 18,434,038.96 is: 25,438,974.99
Step by Step Solution
- Step 1: Write the proportion equation
33,118,688.80 : 45,703,792.74 = 18,434,038.96 : x - Step 2: Convert to fraction form
33,118,688.80/45,703,792.74 = 18,434,038.96/x - Step 3: Cross multiply
33,118,688.80x = 45,703,792.74 × 18,434,038.96 - Step 4: Simplify right side
33,118,688.80x = 842,505,495,988,925.25 - Step 5: Solve for x
x = 842,505,495,988,925.25/33,118,688.80 - Step 6: Final answer
x = 25,438,974.99
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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.