Finding the Fourth Proportional to 643,313,537.40, 964,970,306.10 and 536,175,031.80
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Solution
The fourth proportional to 643,313,537.40, 964,970,306.10 and 536,175,031.80 is: 804,262,547.70
Step by Step Solution
- Step 1: Write the proportion equation
643,313,537.40 : 964,970,306.10 = 536,175,031.80 : x - Step 2: Convert to fraction form
643,313,537.40/964,970,306.10 = 536,175,031.80/x - Step 3: Cross multiply
643,313,537.40x = 964,970,306.10 × 536,175,031.80 - Step 4: Simplify right side
643,313,537.40x = 517,392,984,559,223,232 - Step 5: Solve for x
x = 517,392,984,559,223,232/643,313,537.40 - Step 6: Final answer
x = 804,262,547.70
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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.