Finding the Fourth Proportional to 1,604,672,257.71, 2,214,450,320.73 and 890,207,829.49
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Solution
The fourth proportional to 1,604,672,257.71, 2,214,450,320.73 and 890,207,829.49 is: 1,228,488,249.90
Step by Step Solution
- Step 1: Write the proportion equation
1,604,672,257.71 : 2,214,450,320.73 = 890,207,829.49 : x - Step 2: Convert to fraction form
1,604,672,257.71/2,214,450,320.73 = 890,207,829.49/x - Step 3: Cross multiply
1,604,672,257.71x = 2,214,450,320.73 × 890,207,829.49 - Step 4: Simplify right side
1,604,672,257.71x = 1,971,321,013,535,692,544 - Step 5: Solve for x
x = 1,971,321,013,535,692,544/1,604,672,257.71 - Step 6: Final answer
x = 1,228,488,249.90
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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.