Finding the Fourth Proportional to 101,564,530.38, 140,201,957.12 and 68,569,471.53
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Solution
The fourth proportional to 101,564,530.38, 140,201,957.12 and 68,569,471.53 is: 94,654,837.38
Step by Step Solution
- Step 1: Write the proportion equation
101,564,530.38 : 140,201,957.12 = 68,569,471.53 : x - Step 2: Convert to fraction form
101,564,530.38/140,201,957.12 = 68,569,471.53/x - Step 3: Cross multiply
101,564,530.38x = 140,201,957.12 × 68,569,471.53 - Step 4: Simplify right side
101,564,530.38x = 9,613,574,106,847,274 - Step 5: Solve for x
x = 9,613,574,106,847,274/101,564,530.38 - Step 6: Final answer
x = 94,654,837.38
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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.