Finding the Fourth Proportional to 160,823,670.32, 221,936,497.08 and 87,484,637.36
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Solution
The fourth proportional to 160,823,670.32, 221,936,497.08 and 87,484,637.36 is: 120,728,708.19
Step by Step Solution
- Step 1: Write the proportion equation
160,823,670.32 : 221,936,497.08 = 87,484,637.36 : x - Step 2: Convert to fraction form
160,823,670.32/221,936,497.08 = 87,484,637.36/x - Step 3: Cross multiply
160,823,670.32x = 221,936,497.08 × 87,484,637.36 - Step 4: Simplify right side
160,823,670.32x = 19,416,033,963,992,500 - Step 5: Solve for x
x = 19,416,033,963,992,500/160,823,670.32 - Step 6: Final answer
x = 120,728,708.19
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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.