Finding the Fourth Proportional to 372,414,903.48, 513,853,937.12 and 215,772,471.90
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Solution
The fourth proportional to 372,414,903.48, 513,853,937.12 and 215,772,471.90 is: 297,720,454.18
Step by Step Solution
- Step 1: Write the proportion equation
372,414,903.48 : 513,853,937.12 = 215,772,471.90 : x - Step 2: Convert to fraction form
372,414,903.48/513,853,937.12 = 215,772,471.90/x - Step 3: Cross multiply
372,414,903.48x = 513,853,937.12 × 215,772,471.90 - Step 4: Simplify right side
372,414,903.48x = 110,875,534,206,850,704 - Step 5: Solve for x
x = 110,875,534,206,850,704/372,414,903.48 - Step 6: Final answer
x = 297,720,454.18
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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.