Finding the Fourth Proportional to 1,565,746,496.80, 2,348,619,745.20 and 645,148,967.20
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Solution
The fourth proportional to 1,565,746,496.80, 2,348,619,745.20 and 645,148,967.20 is: 967,723,450.80
Step by Step Solution
- Step 1: Write the proportion equation
1,565,746,496.80 : 2,348,619,745.20 = 645,148,967.20 : x - Step 2: Convert to fraction form
1,565,746,496.80/2,348,619,745.20 = 645,148,967.20/x - Step 3: Cross multiply
1,565,746,496.80x = 2,348,619,745.20 × 645,148,967.20 - Step 4: Simplify right side
1,565,746,496.80x = 1,515,209,602,961,307,136 - Step 5: Solve for x
x = 1,515,209,602,961,307,136/1,565,746,496.80 - Step 6: Final answer
x = 967,723,450.80
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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.