Finding the Fourth Proportional to 113,984,879.08, 157,376,348.99 and 72,206,019.40
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Solution
The fourth proportional to 113,984,879.08, 157,376,348.99 and 72,206,019.40 is: 99,693,220.71
Step by Step Solution
- Step 1: Write the proportion equation
113,984,879.08 : 157,376,348.99 = 72,206,019.40 : x - Step 2: Convert to fraction form
113,984,879.08/157,376,348.99 = 72,206,019.40/x - Step 3: Cross multiply
113,984,879.08x = 157,376,348.99 × 72,206,019.40 - Step 4: Simplify right side
113,984,879.08x = 11,363,519,708,273,112 - Step 5: Solve for x
x = 11,363,519,708,273,112/113,984,879.08 - Step 6: Final answer
x = 99,693,220.71
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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.