Finding the Fourth Proportional to 126,445,311.90, 189,809,685.45 and 97,818,356.70
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Solution
The fourth proportional to 126,445,311.90, 189,809,685.45 and 97,818,356.70 is: 146,837,168.08
Step by Step Solution
- Step 1: Write the proportion equation
126,445,311.90 : 189,809,685.45 = 97,818,356.70 : x - Step 2: Convert to fraction form
126,445,311.90/189,809,685.45 = 97,818,356.70/x - Step 3: Cross multiply
126,445,311.90x = 189,809,685.45 × 97,818,356.70 - Step 4: Simplify right side
126,445,311.90x = 18,566,871,516,462,900 - Step 5: Solve for x
x = 18,566,871,516,462,900/126,445,311.90 - Step 6: Final answer
x = 146,837,168.08
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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.