Finding the Fourth Proportional to 257,368,581.84, 355,171,166.64 and 139,893,839.58
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Solution
The fourth proportional to 257,368,581.84, 355,171,166.64 and 139,893,839.58 is: 193,054,870.39
Step by Step Solution
- Step 1: Write the proportion equation
257,368,581.84 : 355,171,166.64 = 139,893,839.58 : x - Step 2: Convert to fraction form
257,368,581.84/355,171,166.64 = 139,893,839.58/x - Step 3: Cross multiply
257,368,581.84x = 355,171,166.64 × 139,893,839.58 - Step 4: Simplify right side
257,368,581.84x = 49,686,258,209,377,608 - Step 5: Solve for x
x = 49,686,258,209,377,608/257,368,581.84 - Step 6: Final answer
x = 193,054,870.39
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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.