Finding the Fourth Proportional to 71,098,936.98, 106,648,405.48 and 19,980,955.79
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Solution
The fourth proportional to 71,098,936.98, 106,648,405.48 and 19,980,955.79 is: 29,971,433.69
Step by Step Solution
- Step 1: Write the proportion equation
71,098,936.98 : 106,648,405.48 = 19,980,955.79 : x - Step 2: Convert to fraction form
71,098,936.98/106,648,405.48 = 19,980,955.79/x - Step 3: Cross multiply
71,098,936.98x = 106,648,405.48 × 19,980,955.79 - Step 4: Simplify right side
71,098,936.98x = 2,130,937,075,161,541.50 - Step 5: Solve for x
x = 2,130,937,075,161,541.50/71,098,936.98 - Step 6: Final answer
x = 29,971,433.69
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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.