Finding the Fourth Proportional to 98,118,510.46, 135,409,489.85 and 54,065,455.99
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Solution
The fourth proportional to 98,118,510.46, 135,409,489.85 and 54,065,455.99 is: 74,613,605.32
Step by Step Solution
- Step 1: Write the proportion equation
98,118,510.46 : 135,409,489.85 = 54,065,455.99 : x - Step 2: Convert to fraction form
98,118,510.46/135,409,489.85 = 54,065,455.99/x - Step 3: Cross multiply
98,118,510.46x = 135,409,489.85 × 54,065,455.99 - Step 4: Simplify right side
98,118,510.46x = 7,320,975,814,113,527 - Step 5: Solve for x
x = 7,320,975,814,113,527/98,118,510.46 - Step 6: Final answer
x = 74,613,605.32
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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.