Finding the Fourth Proportional to 90,086,750.10, 135,130,125.15 and 61,176,359.70
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Solution
The fourth proportional to 90,086,750.10, 135,130,125.15 and 61,176,359.70 is: 91,764,539.55
Step by Step Solution
- Step 1: Write the proportion equation
90,086,750.10 : 135,130,125.15 = 61,176,359.70 : x - Step 2: Convert to fraction form
90,086,750.10/135,130,125.15 = 61,176,359.70/x - Step 3: Cross multiply
90,086,750.10x = 135,130,125.15 × 61,176,359.70 - Step 4: Simplify right side
90,086,750.10x = 8,266,769,142,482,417 - Step 5: Solve for x
x = 8,266,769,142,482,417/90,086,750.10 - Step 6: Final answer
x = 91,764,539.55
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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.