Finding the Fourth Proportional to 261,605,785.97, 392,395,635.12 and 97,831,502.30
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Solution
The fourth proportional to 261,605,785.97, 392,395,635.12 and 97,831,502.30 is: 146,742,375.51
Step by Step Solution
- Step 1: Write the proportion equation
261,605,785.97 : 392,395,635.12 = 97,831,502.30 : x - Step 2: Convert to fraction form
261,605,785.97/392,395,635.12 = 97,831,502.30/x - Step 3: Cross multiply
261,605,785.97x = 392,395,635.12 × 97,831,502.30 - Step 4: Simplify right side
261,605,785.97x = 38,388,654,479,752,240 - Step 5: Solve for x
x = 38,388,654,479,752,240/261,605,785.97 - Step 6: Final answer
x = 146,742,375.51
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.