Finding the Fourth Proportional to 98,144,947.68, 135,445,354.08 and 56,328,678.67
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Solution
The fourth proportional to 98,144,947.68, 135,445,354.08 and 56,328,678.67 is: 77,736,633.49
Step by Step Solution
- Step 1: Write the proportion equation
98,144,947.68 : 135,445,354.08 = 56,328,678.67 : x - Step 2: Convert to fraction form
98,144,947.68/135,445,354.08 = 56,328,678.67/x - Step 3: Cross multiply
98,144,947.68x = 135,445,354.08 × 56,328,678.67 - Step 4: Simplify right side
98,144,947.68x = 7,629,457,826,766,846 - Step 5: Solve for x
x = 7,629,457,826,766,846/98,144,947.68 - Step 6: Final answer
x = 77,736,633.49
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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.