Finding the Fourth Proportional to 85,448,466.40, 128,272,232.40 and 51,408,248.80
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Solution
The fourth proportional to 85,448,466.40, 128,272,232.40 and 51,408,248.80 is: 77,172,254.99
Step by Step Solution
- Step 1: Write the proportion equation
85,448,466.40 : 128,272,232.40 = 51,408,248.80 : x - Step 2: Convert to fraction form
85,448,466.40/128,272,232.40 = 51,408,248.80/x - Step 3: Cross multiply
85,448,466.40x = 128,272,232.40 × 51,408,248.80 - Step 4: Simplify right side
85,448,466.40x = 6,594,250,837,350,621 - Step 5: Solve for x
x = 6,594,250,837,350,621/85,448,466.40 - Step 6: Final answer
x = 77,172,254.99
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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.