Finding the Fourth Proportional to 90,124,136.20, 135,203,033.94 and 40,943,442.76
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Solution
The fourth proportional to 90,124,136.20, 135,203,033.94 and 40,943,442.76 is: 61,422,809.85
Step by Step Solution
- Step 1: Write the proportion equation
90,124,136.20 : 135,203,033.94 = 40,943,442.76 : x - Step 2: Convert to fraction form
90,124,136.20/135,203,033.94 = 40,943,442.76/x - Step 3: Cross multiply
90,124,136.20x = 135,203,033.94 × 40,943,442.76 - Step 4: Simplify right side
90,124,136.20x = 5,535,677,681,100,727 - Step 5: Solve for x
x = 5,535,677,681,100,727/90,124,136.20 - Step 6: Final answer
x = 61,422,809.85
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.