Finding the Fourth Proportional to 135,439,054.23, 186,899,639.25 and 76,702,139.67
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Solution
The fourth proportional to 135,439,054.23, 186,899,639.25 and 76,702,139.67 is: 105,845,410.07
Step by Step Solution
- Step 1: Write the proportion equation
135,439,054.23 : 186,899,639.25 = 76,702,139.67 : x - Step 2: Convert to fraction form
135,439,054.23/186,899,639.25 = 76,702,139.67/x - Step 3: Cross multiply
135,439,054.23x = 186,899,639.25 × 76,702,139.67 - Step 4: Simplify right side
135,439,054.23x = 14,335,602,234,026,114 - Step 5: Solve for x
x = 14,335,602,234,026,114/135,439,054.23 - Step 6: Final answer
x = 105,845,410.07
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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.