Finding the Fourth Proportional to 282,355,969.08, 389,660,688.36 and 156,913,451.94
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Solution
The fourth proportional to 282,355,969.08, 389,660,688.36 and 156,913,451.94 is: 216,545,815.89
Step by Step Solution
- Step 1: Write the proportion equation
282,355,969.08 : 389,660,688.36 = 156,913,451.94 : x - Step 2: Convert to fraction form
282,355,969.08/389,660,688.36 = 156,913,451.94/x - Step 3: Cross multiply
282,355,969.08x = 389,660,688.36 × 156,913,451.94 - Step 4: Simplify right side
282,355,969.08x = 61,143,003,695,884,176 - Step 5: Solve for x
x = 61,143,003,695,884,176/282,355,969.08 - Step 6: Final answer
x = 216,545,815.89
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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.