Finding the Fourth Proportional to 21,362,401.94, 29,497,010.58 and 19,730,156.36
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Solution
The fourth proportional to 21,362,401.94, 29,497,010.58 and 19,730,156.36 is: 27,243,220.71
Step by Step Solution
- Step 1: Write the proportion equation
21,362,401.94 : 29,497,010.58 = 19,730,156.36 : x - Step 2: Convert to fraction form
21,362,401.94/29,497,010.58 = 19,730,156.36/x - Step 3: Cross multiply
21,362,401.94x = 29,497,010.58 × 19,730,156.36 - Step 4: Simplify right side
21,362,401.94x = 581,980,630,748,489.25 - Step 5: Solve for x
x = 581,980,630,748,489.25/21,362,401.94 - Step 6: Final answer
x = 27,243,220.71
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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.