Finding the Fourth Proportional to 37,758,681.09, 56,638,349.42 and 12,199,693.23
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Solution
The fourth proportional to 37,758,681.09, 56,638,349.42 and 12,199,693.23 is: 18,299,645.75
Step by Step Solution
- Step 1: Write the proportion equation
37,758,681.09 : 56,638,349.42 = 12,199,693.23 : x - Step 2: Convert to fraction form
37,758,681.09/56,638,349.42 = 12,199,693.23/x - Step 3: Cross multiply
37,758,681.09x = 56,638,349.42 × 12,199,693.23 - Step 4: Simplify right side
37,758,681.09x = 690,970,487,916,550 - Step 5: Solve for x
x = 690,970,487,916,550/37,758,681.09 - Step 6: Final answer
x = 18,299,645.75
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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.