Finding the Fourth Proportional to 97,723,428.90, 146,585,143.35 and 74,765,177.70
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Solution
The fourth proportional to 97,723,428.90, 146,585,143.35 and 74,765,177.70 is: 112,147,766.55
Step by Step Solution
- Step 1: Write the proportion equation
97,723,428.90 : 146,585,143.35 = 74,765,177.70 : x - Step 2: Convert to fraction form
97,723,428.90/146,585,143.35 = 74,765,177.70/x - Step 3: Cross multiply
97,723,428.90x = 146,585,143.35 × 74,765,177.70 - Step 4: Simplify right side
97,723,428.90x = 10,959,464,290,742,724 - Step 5: Solve for x
x = 10,959,464,290,742,724/97,723,428.90 - Step 6: Final answer
x = 112,147,766.55
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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.