Finding the Fourth Proportional to 143,437,248.48, 197,952,741.36 and 81,563,340
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Solution
The fourth proportional to 143,437,248.48, 197,952,741.36 and 81,563,340 is: 112,562,719.37
Step by Step Solution
- Step 1: Write the proportion equation
143,437,248.48 : 197,952,741.36 = 81,563,340 : x - Step 2: Convert to fraction form
143,437,248.48/197,952,741.36 = 81,563,340/x - Step 3: Cross multiply
143,437,248.48x = 197,952,741.36 × 81,563,340 - Step 4: Simplify right side
143,437,248.48x = 16,145,686,747,477,744 - Step 5: Solve for x
x = 16,145,686,747,477,744/143,437,248.48 - Step 6: Final answer
x = 112,562,719.37
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.