Finding the Fourth Proportional to 101,574,138.80, 152,361,208.20 and 70,963,137.20
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Solution
The fourth proportional to 101,574,138.80, 152,361,208.20 and 70,963,137.20 is: 106,444,705.80
Step by Step Solution
- Step 1: Write the proportion equation
101,574,138.80 : 152,361,208.20 = 70,963,137.20 : x - Step 2: Convert to fraction form
101,574,138.80/152,361,208.20 = 70,963,137.20/x - Step 3: Cross multiply
101,574,138.80x = 152,361,208.20 × 70,963,137.20 - Step 4: Simplify right side
101,574,138.80x = 10,812,029,321,454,364 - Step 5: Solve for x
x = 10,812,029,321,454,364/101,574,138.80 - Step 6: Final answer
x = 106,444,705.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.