Finding the Fourth Proportional to 286,206,966.08, 394,975,330.10 and 160,781,295.68
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Solution
The fourth proportional to 286,206,966.08, 394,975,330.10 and 160,781,295.68 is: 221,883,646.67
Step by Step Solution
- Step 1: Write the proportion equation
286,206,966.08 : 394,975,330.10 = 160,781,295.68 : x - Step 2: Convert to fraction form
286,206,966.08/394,975,330.10 = 160,781,295.68/x - Step 3: Cross multiply
286,206,966.08x = 394,975,330.10 × 160,781,295.68 - Step 4: Simplify right side
286,206,966.08x = 63,504,645,335,113,712 - Step 5: Solve for x
x = 63,504,645,335,113,712/286,206,966.08 - Step 6: Final answer
x = 221,883,646.67
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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.