Finding the Fourth Proportional to 1,861,779,244.20, 2,792,668,866.30 and 634,987,717.80
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Solution
The fourth proportional to 1,861,779,244.20, 2,792,668,866.30 and 634,987,717.80 is: 952,481,576.70
Step by Step Solution
- Step 1: Write the proportion equation
1,861,779,244.20 : 2,792,668,866.30 = 634,987,717.80 : x - Step 2: Convert to fraction form
1,861,779,244.20/2,792,668,866.30 = 634,987,717.80/x - Step 3: Cross multiply
1,861,779,244.20x = 2,792,668,866.30 × 634,987,717.80 - Step 4: Simplify right side
1,861,779,244.20x = 1,773,310,429,982,950,400 - Step 5: Solve for x
x = 1,773,310,429,982,950,400/1,861,779,244.20 - Step 6: Final answer
x = 952,481,576.70
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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.