Finding the Fourth Proportional to 157,283,226.97, 217,143,959.50 and 139,831,368.83
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Solution
The fourth proportional to 157,283,226.97, 217,143,959.50 and 139,831,368.83 is: 193,050,064.36
Step by Step Solution
- Step 1: Write the proportion equation
157,283,226.97 : 217,143,959.50 = 139,831,368.83 : x - Step 2: Convert to fraction form
157,283,226.97/217,143,959.50 = 139,831,368.83/x - Step 3: Cross multiply
157,283,226.97x = 217,143,959.50 × 139,831,368.83 - Step 4: Simplify right side
157,283,226.97x = 30,363,537,088,615,780 - Step 5: Solve for x
x = 30,363,537,088,615,780/157,283,226.97 - Step 6: Final answer
x = 193,050,064.36
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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.