Finding the Fourth Proportional to 647,424,297.90, 971,136,446.85 and 572,597,405.10
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Solution
The fourth proportional to 647,424,297.90, 971,136,446.85 and 572,597,405.10 is: 858,896,107.65
Step by Step Solution
- Step 1: Write the proportion equation
647,424,297.90 : 971,136,446.85 = 572,597,405.10 : x - Step 2: Convert to fraction form
647,424,297.90/971,136,446.85 = 572,597,405.10/x - Step 3: Cross multiply
647,424,297.90x = 971,136,446.85 × 572,597,405.10 - Step 4: Simplify right side
647,424,297.90x = 556,070,209,464,344,128 - Step 5: Solve for x
x = 556,070,209,464,344,128/647,424,297.90 - Step 6: Final answer
x = 858,896,107.65
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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.