Finding the Fourth Proportional to 20,120,378,408.56, 27,765,313,809.35 and 10,964,712,827.08
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Solution
The fourth proportional to 20,120,378,408.56, 27,765,313,809.35 and 10,964,712,827.08 is: 15,130,863,162.27
Step by Step Solution
- Step 1: Write the proportion equation
20,120,378,408.56 : 27,765,313,809.35 = 10,964,712,827.08 : x - Step 2: Convert to fraction form
20,120,378,408.56/27,765,313,809.35 = 10,964,712,827.08/x - Step 3: Cross multiply
20,120,378,408.56x = 27,765,313,809.35 × 10,964,712,827.08 - Step 4: Simplify right side
20,120,378,408.56x = 304,438,692,473,143,296,000 - Step 5: Solve for x
x = 304,438,692,473,143,296,000/20,120,378,408.56 - Step 6: Final answer
x = 15,130,863,162.27
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1.5x scale
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.