Finding the Fourth Proportional to 292,411,975.20, 438,617,962.80 and 283,908,919.20
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Solution
The fourth proportional to 292,411,975.20, 438,617,962.80 and 283,908,919.20 is: 425,863,378.80
Step by Step Solution
- Step 1: Write the proportion equation
292,411,975.20 : 438,617,962.80 = 283,908,919.20 : x - Step 2: Convert to fraction form
292,411,975.20/438,617,962.80 = 283,908,919.20/x - Step 3: Cross multiply
292,411,975.20x = 438,617,962.80 × 283,908,919.20 - Step 4: Simplify right side
292,411,975.20x = 124,527,551,760,253,808 - Step 5: Solve for x
x = 124,527,551,760,253,808/292,411,975.20 - Step 6: Final answer
x = 425,863,378.80
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1.5x scale
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.