Finding the Fourth Proportional to 1,119,745,754.60, 1,679,618,631.90 and 885,943,207.40
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Solution
The fourth proportional to 1,119,745,754.60, 1,679,618,631.90 and 885,943,207.40 is: 1,328,914,811.10
Step by Step Solution
- Step 1: Write the proportion equation
1,119,745,754.60 : 1,679,618,631.90 = 885,943,207.40 : x - Step 2: Convert to fraction form
1,119,745,754.60/1,679,618,631.90 = 885,943,207.40/x - Step 3: Cross multiply
1,119,745,754.60x = 1,679,618,631.90 × 885,943,207.40 - Step 4: Simplify right side
1,119,745,754.60x = 1,488,046,717,954,286,080 - Step 5: Solve for x
x = 1,488,046,717,954,286,080/1,119,745,754.60 - Step 6: Final answer
x = 1,328,914,811.10
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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.