Finding the Fourth Proportional to 57,701,017.62, 79,627,421.46 and 31,239,366.18
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Solution
The fourth proportional to 57,701,017.62, 79,627,421.46 and 31,239,366.18 is: 43,110,334.61
Step by Step Solution
- Step 1: Write the proportion equation
57,701,017.62 : 79,627,421.46 = 31,239,366.18 : x - Step 2: Convert to fraction form
57,701,017.62/79,627,421.46 = 31,239,366.18/x - Step 3: Cross multiply
57,701,017.62x = 79,627,421.46 × 31,239,366.18 - Step 4: Simplify right side
57,701,017.62x = 2,487,510,176,958,130 - Step 5: Solve for x
x = 2,487,510,176,958,130/57,701,017.62 - Step 6: Final answer
x = 43,110,334.61
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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.