Finding the Fourth Proportional to 124,527,774.80, 186,791,662.20 and 79,290,117.20
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Solution
The fourth proportional to 124,527,774.80, 186,791,662.20 and 79,290,117.20 is: 118,935,175.80
Step by Step Solution
- Step 1: Write the proportion equation
124,527,774.80 : 186,791,662.20 = 79,290,117.20 : x - Step 2: Convert to fraction form
124,527,774.80/186,791,662.20 = 79,290,117.20/x - Step 3: Cross multiply
124,527,774.80x = 186,791,662.20 × 79,290,117.20 - Step 4: Simplify right side
124,527,774.80x = 14,810,732,787,820,810 - Step 5: Solve for x
x = 14,810,732,787,820,810/124,527,774.80 - Step 6: Final answer
x = 118,935,175.80
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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.