Finding the Fourth Proportional to 261,605,783.97, 392,395,632.12 and 97,831,500.30
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Solution
The fourth proportional to 261,605,783.97, 392,395,632.12 and 97,831,500.30 is: 146,742,372.51
Step by Step Solution
- Step 1: Write the proportion equation
261,605,783.97 : 392,395,632.12 = 97,831,500.30 : x - Step 2: Convert to fraction form
261,605,783.97/392,395,632.12 = 97,831,500.30/x - Step 3: Cross multiply
261,605,783.97x = 392,395,632.12 × 97,831,500.30 - Step 4: Simplify right side
261,605,783.97x = 38,388,653,401,466,472 - Step 5: Solve for x
x = 38,388,653,401,466,472/261,605,783.97 - Step 6: Final answer
x = 146,742,372.51
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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.