Finding the Fourth Proportional to 84,516,245.40, 126,774,368.10 and 65,360,749.80
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Solution
The fourth proportional to 84,516,245.40, 126,774,368.10 and 65,360,749.80 is: 98,041,124.70
Step by Step Solution
- Step 1: Write the proportion equation
84,516,245.40 : 126,774,368.10 = 65,360,749.80 : x - Step 2: Convert to fraction form
84,516,245.40/126,774,368.10 = 65,360,749.80/x - Step 3: Cross multiply
84,516,245.40x = 126,774,368.10 × 65,360,749.80 - Step 4: Simplify right side
84,516,245.40x = 8,286,067,754,437,201 - Step 5: Solve for x
x = 8,286,067,754,437,201/84,516,245.40 - Step 6: Final answer
x = 98,041,124.70
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1.5x scale
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.