Finding the Fourth Proportional to 77,473,485.79, 106,912,118.50 and 42,669,414.70
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Solution
The fourth proportional to 77,473,485.79, 106,912,118.50 and 42,669,414.70 is: 58,883,080.76
Step by Step Solution
- Step 1: Write the proportion equation
77,473,485.79 : 106,912,118.50 = 42,669,414.70 : x - Step 2: Convert to fraction form
77,473,485.79/106,912,118.50 = 42,669,414.70/x - Step 3: Cross multiply
77,473,485.79x = 106,912,118.50 × 42,669,414.70 - Step 4: Simplify right side
77,473,485.79x = 4,561,877,520,358,088 - Step 5: Solve for x
x = 4,561,877,520,358,088/77,473,485.79 - Step 6: Final answer
x = 58,883,080.76
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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.