Finding the Fourth Proportional to 65,882,030.87, 90,917,209.14 and 36,515,257.31
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Solution
The fourth proportional to 65,882,030.87, 90,917,209.14 and 36,515,257.31 is: 50,391,058.71
Step by Step Solution
- Step 1: Write the proportion equation
65,882,030.87 : 90,917,209.14 = 36,515,257.31 : x - Step 2: Convert to fraction form
65,882,030.87/90,917,209.14 = 36,515,257.31/x - Step 3: Cross multiply
65,882,030.87x = 90,917,209.14 × 36,515,257.31 - Step 4: Simplify right side
65,882,030.87x = 3,319,865,285,654,184 - Step 5: Solve for x
x = 3,319,865,285,654,184/65,882,030.87 - Step 6: Final answer
x = 50,391,058.71
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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.