Finding the Fourth Proportional to 99,774,378.84, 148,739,295.67 and 98,201,977.78
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Solution
The fourth proportional to 99,774,378.84, 148,739,295.67 and 98,201,977.78 is: 146,395,228.70
Step by Step Solution
- Step 1: Write the proportion equation
99,774,378.84 : 148,739,295.67 = 98,201,977.78 : x - Step 2: Convert to fraction form
99,774,378.84/148,739,295.67 = 98,201,977.78/x - Step 3: Cross multiply
99,774,378.84x = 148,739,295.67 × 98,201,977.78 - Step 4: Simplify right side
99,774,378.84x = 14,606,493,008,398,190 - Step 5: Solve for x
x = 14,606,493,008,398,190/99,774,378.84 - Step 6: Final answer
x = 146,395,228.70
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.