Finding the Fourth Proportional to 5,636,496.78, 7,778,415.42 and 3,058,228.71
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Solution
The fourth proportional to 5,636,496.78, 7,778,415.42 and 3,058,228.71 is: 4,220,382.67
Step by Step Solution
- Step 1: Write the proportion equation
5,636,496.78 : 7,778,415.42 = 3,058,228.71 : x - Step 2: Convert to fraction form
5,636,496.78/7,778,415.42 = 3,058,228.71/x - Step 3: Cross multiply
5,636,496.78x = 7,778,415.42 × 3,058,228.71 - Step 4: Simplify right side
5,636,496.78x = 23,788,173,355,750.71 - Step 5: Solve for x
x = 23,788,173,355,750.71/5,636,496.78 - Step 6: Final answer
x = 4,220,382.67
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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.