Finding the Fourth Proportional to 69,837,371.22, 96,383,089.74 and 38,478,572.81
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Solution
The fourth proportional to 69,837,371.22, 96,383,089.74 and 38,478,572.81 is: 53,104,572.40
Step by Step Solution
- Step 1: Write the proportion equation
69,837,371.22 : 96,383,089.74 = 38,478,572.81 : x - Step 2: Convert to fraction form
69,837,371.22/96,383,089.74 = 38,478,572.81/x - Step 3: Cross multiply
69,837,371.22x = 96,383,089.74 × 38,478,572.81 - Step 4: Simplify right side
69,837,371.22x = 3,708,683,736,020,728 - Step 5: Solve for x
x = 3,708,683,736,020,728/69,837,371.22 - Step 6: Final answer
x = 53,104,572.40
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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.