Finding the Fourth Proportional to 14,478,261.23, 19,975,139.33 and 8,197,931.85
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Solution
The fourth proportional to 14,478,261.23, 19,975,139.33 and 8,197,931.85 is: 11,310,393.44
Step by Step Solution
- Step 1: Write the proportion equation
14,478,261.23 : 19,975,139.33 = 8,197,931.85 : x - Step 2: Convert to fraction form
14,478,261.23/19,975,139.33 = 8,197,931.85/x - Step 3: Cross multiply
14,478,261.23x = 19,975,139.33 × 8,197,931.85 - Step 4: Simplify right side
14,478,261.23x = 163,754,830,918,058.38 - Step 5: Solve for x
x = 163,754,830,918,058.38/14,478,261.23 - Step 6: Final answer
x = 11,310,393.44
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.