Finding the Fourth Proportional to 34,148,153.13, 47,123,897.53 and 18,678,102.45
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Solution
The fourth proportional to 34,148,153.13, 47,123,897.53 and 18,678,102.45 is: 25,775,478.47
Step by Step Solution
- Step 1: Write the proportion equation
34,148,153.13 : 47,123,897.53 = 18,678,102.45 : x - Step 2: Convert to fraction form
34,148,153.13/47,123,897.53 = 18,678,102.45/x - Step 3: Cross multiply
34,148,153.13x = 47,123,897.53 × 18,678,102.45 - Step 4: Simplify right side
34,148,153.13x = 880,184,985,908,641.88 - Step 5: Solve for x
x = 880,184,985,908,641.88/34,148,153.13 - Step 6: Final answer
x = 25,775,478.47
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1.5x scale
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.