Finding the Fourth Proportional to 639,705,823.14, 959,558,734.68 and 155,031,631.14
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Solution
The fourth proportional to 639,705,823.14, 959,558,734.68 and 155,031,631.14 is: 232,547,446.70
Step by Step Solution
- Step 1: Write the proportion equation
639,705,823.14 : 959,558,734.68 = 155,031,631.14 : x - Step 2: Convert to fraction form
639,705,823.14/959,558,734.68 = 155,031,631.14/x - Step 3: Cross multiply
639,705,823.14x = 959,558,734.68 × 155,031,631.14 - Step 4: Simplify right side
639,705,823.14x = 148,761,955,812,074,880 - Step 5: Solve for x
x = 148,761,955,812,074,880/639,705,823.14 - Step 6: Final answer
x = 232,547,446.70
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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.