Finding the Fourth Proportional to 447,777,417.70, 671,666,126.55 and 409,035,368.80
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Solution
The fourth proportional to 447,777,417.70, 671,666,126.55 and 409,035,368.80 is: 613,553,053.20
Step by Step Solution
- Step 1: Write the proportion equation
447,777,417.70 : 671,666,126.55 = 409,035,368.80 : x - Step 2: Convert to fraction form
447,777,417.70/671,666,126.55 = 409,035,368.80/x - Step 3: Cross multiply
447,777,417.70x = 671,666,126.55 × 409,035,368.80 - Step 4: Simplify right side
447,777,417.70x = 274,735,201,783,846,720 - Step 5: Solve for x
x = 274,735,201,783,846,720/447,777,417.70 - Step 6: Final answer
x = 613,553,053.20
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.