Finding the Fourth Proportional to 142,539,737.63, 196,704,837.99 and 77,349,641.63
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Solution
The fourth proportional to 142,539,737.63, 196,704,837.99 and 77,349,641.63 is: 106,742,505.48
Step by Step Solution
- Step 1: Write the proportion equation
142,539,737.63 : 196,704,837.99 = 77,349,641.63 : x - Step 2: Convert to fraction form
142,539,737.63/196,704,837.99 = 77,349,641.63/x - Step 3: Cross multiply
142,539,737.63x = 196,704,837.99 × 77,349,641.63 - Step 4: Simplify right side
142,539,737.63x = 15,215,048,724,430,186 - Step 5: Solve for x
x = 15,215,048,724,430,186/142,539,737.63 - Step 6: Final answer
x = 106,742,505.48
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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.