Finding the Fourth Proportional to 1,648,177,691.24, 2,274,484,679.73 and 905,669,583.68
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Solution
The fourth proportional to 1,648,177,691.24, 2,274,484,679.73 and 905,669,583.68 is: 1,249,823,731.95
Step by Step Solution
- Step 1: Write the proportion equation
1,648,177,691.24 : 2,274,484,679.73 = 905,669,583.68 : x - Step 2: Convert to fraction form
1,648,177,691.24/2,274,484,679.73 = 905,669,583.68/x - Step 3: Cross multiply
1,648,177,691.24x = 2,274,484,679.73 × 905,669,583.68 - Step 4: Simplify right side
1,648,177,691.24x = 2,059,931,592,977,607,168 - Step 5: Solve for x
x = 2,059,931,592,977,607,168/1,648,177,691.24 - Step 6: Final answer
x = 1,249,823,731.95
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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.