Finding the Fourth Proportional to 1,424,103,421.60, 2,136,396,315.12 and 491,172,962.08
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Solution
The fourth proportional to 1,424,103,421.60, 2,136,396,315.12 and 491,172,962.08 is: 736,842,626.99
Step by Step Solution
- Step 1: Write the proportion equation
1,424,103,421.60 : 2,136,396,315.12 = 491,172,962.08 : x - Step 2: Convert to fraction form
1,424,103,421.60/2,136,396,315.12 = 491,172,962.08/x - Step 3: Cross multiply
1,424,103,421.60x = 2,136,396,315.12 × 491,172,962.08 - Step 4: Simplify right side
1,424,103,421.60x = 1,049,340,106,274,287,360 - Step 5: Solve for x
x = 1,049,340,106,274,287,360/1,424,103,421.60 - Step 6: Final answer
x = 736,842,626.99
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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.