Finding the Fourth Proportional to 156,326,341.24, 215,756,224.50 and 86,734,142.20
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Solution
The fourth proportional to 156,326,341.24, 215,756,224.50 and 86,734,142.20 is: 119,707,471.61
Step by Step Solution
- Step 1: Write the proportion equation
156,326,341.24 : 215,756,224.50 = 86,734,142.20 : x - Step 2: Convert to fraction form
156,326,341.24/215,756,224.50 = 86,734,142.20/x - Step 3: Cross multiply
156,326,341.24x = 215,756,224.50 × 86,734,142.20 - Step 4: Simplify right side
156,326,341.24x = 18,713,431,056,318,124 - Step 5: Solve for x
x = 18,713,431,056,318,124/156,326,341.24 - Step 6: Final answer
x = 119,707,471.61
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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.