Finding the Fourth Proportional to 122,880,258.74, 169,579,908.78 and 70,669,335.18
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Solution
The fourth proportional to 122,880,258.74, 169,579,908.78 and 70,669,335.18 is: 97,526,645.34
Step by Step Solution
- Step 1: Write the proportion equation
122,880,258.74 : 169,579,908.78 = 70,669,335.18 : x - Step 2: Convert to fraction form
122,880,258.74/169,579,908.78 = 70,669,335.18/x - Step 3: Cross multiply
122,880,258.74x = 169,579,908.78 × 70,669,335.18 - Step 4: Simplify right side
122,880,258.74x = 11,984,099,413,367,646 - Step 5: Solve for x
x = 11,984,099,413,367,646/122,880,258.74 - Step 6: Final answer
x = 97,526,645.34
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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.