Finding the Fourth Proportional to 12,101,899.70, 18,127,966.35 and 8,319,653.30
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Solution
The fourth proportional to 12,101,899.70, 18,127,966.35 and 8,319,653.30 is: 12,462,373.58
Step by Step Solution
- Step 1: Write the proportion equation
12,101,899.70 : 18,127,966.35 = 8,319,653.30 : x - Step 2: Convert to fraction form
12,101,899.70/18,127,966.35 = 8,319,653.30/x - Step 3: Cross multiply
12,101,899.70x = 18,127,966.35 × 8,319,653.30 - Step 4: Simplify right side
12,101,899.70x = 150,818,395,066,066.47 - Step 5: Solve for x
x = 150,818,395,066,066.47/12,101,899.70 - Step 6: Final answer
x = 12,462,373.58
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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.