Finding the Fourth Proportional to 368,412,305.70, 508,453,564.05 and 209,681,023.95
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Solution
The fourth proportional to 368,412,305.70, 508,453,564.05 and 209,681,023.95 is: 289,385,186.90
Step by Step Solution
- Step 1: Write the proportion equation
368,412,305.70 : 508,453,564.05 = 209,681,023.95 : x - Step 2: Convert to fraction form
368,412,305.70/508,453,564.05 = 209,681,023.95/x - Step 3: Cross multiply
368,412,305.70x = 508,453,564.05 × 209,681,023.95 - Step 4: Simplify right side
368,412,305.70x = 106,613,063,941,030,912 - Step 5: Solve for x
x = 106,613,063,941,030,912/368,412,305.70 - Step 6: Final answer
x = 289,385,186.90
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.