Finding the Fourth Proportional to 77,473,490.28, 106,912,124.70 and 42,669,419.19
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Solution
The fourth proportional to 77,473,490.28, 106,912,124.70 and 42,669,419.19 is: 58,883,086.96
Step by Step Solution
- Step 1: Write the proportion equation
77,473,490.28 : 106,912,124.70 = 42,669,419.19 : x - Step 2: Convert to fraction form
77,473,490.28/106,912,124.70 = 42,669,419.19/x - Step 3: Cross multiply
77,473,490.28x = 106,912,124.70 × 42,669,419.19 - Step 4: Simplify right side
77,473,490.28x = 4,561,878,265,317,853 - Step 5: Solve for x
x = 4,561,878,265,317,853/77,473,490.28 - Step 6: Final answer
x = 58,883,086.96
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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.