Finding the Fourth Proportional to 81,912,415.58, 113,038,369.30 and 44,742,681.62
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Solution
The fourth proportional to 81,912,415.58, 113,038,369.30 and 44,742,681.62 is: 61,744,483.21
Step by Step Solution
- Step 1: Write the proportion equation
81,912,415.58 : 113,038,369.30 = 44,742,681.62 : x - Step 2: Convert to fraction form
81,912,415.58/113,038,369.30 = 44,742,681.62/x - Step 3: Cross multiply
81,912,415.58x = 113,038,369.30 × 44,742,681.62 - Step 4: Simplify right side
81,912,415.58x = 5,057,639,768,433,882 - Step 5: Solve for x
x = 5,057,639,768,433,882/81,912,415.58 - Step 6: Final answer
x = 61,744,483.21
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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.