Finding the Fourth Proportional to 68,163,901.80, 102,245,852.70 and 22,105,681.80
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Solution
The fourth proportional to 68,163,901.80, 102,245,852.70 and 22,105,681.80 is: 33,158,522.70
Step by Step Solution
- Step 1: Write the proportion equation
68,163,901.80 : 102,245,852.70 = 22,105,681.80 : x - Step 2: Convert to fraction form
68,163,901.80/102,245,852.70 = 22,105,681.80/x - Step 3: Cross multiply
68,163,901.80x = 102,245,852.70 × 22,105,681.80 - Step 4: Simplify right side
68,163,901.80x = 2,260,214,285,155,871 - Step 5: Solve for x
x = 2,260,214,285,155,871/68,163,901.80 - Step 6: Final answer
x = 33,158,522.70
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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.