Finding the Fourth Proportional to 117,478,956.64, 162,111,455.58 and 67,922,509.99
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Solution
The fourth proportional to 117,478,956.64, 162,111,455.58 and 67,922,509.99 is: 93,727,568.55
Step by Step Solution
- Step 1: Write the proportion equation
117,478,956.64 : 162,111,455.58 = 67,922,509.99 : x - Step 2: Convert to fraction form
117,478,956.64/162,111,455.58 = 67,922,509.99/x - Step 3: Cross multiply
117,478,956.64x = 162,111,455.58 × 67,922,509.99 - Step 4: Simplify right side
117,478,956.64x = 11,011,016,961,125,992 - Step 5: Solve for x
x = 11,011,016,961,125,992/117,478,956.64 - Step 6: Final answer
x = 93,727,568.55
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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.