Finding the Fourth Proportional to 1,029,302,430.48, 1,420,448,324.78 and 559,403,776.08
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Solution
The fourth proportional to 1,029,302,430.48, 1,420,448,324.78 and 559,403,776.08 is: 771,983,173.34
Step by Step Solution
- Step 1: Write the proportion equation
1,029,302,430.48 : 1,420,448,324.78 = 559,403,776.08 : x - Step 2: Convert to fraction form
1,029,302,430.48/1,420,448,324.78 = 559,403,776.08/x - Step 3: Cross multiply
1,029,302,430.48x = 1,420,448,324.78 × 559,403,776.08 - Step 4: Simplify right side
1,029,302,430.48x = 794,604,156,608,442,240 - Step 5: Solve for x
x = 794,604,156,608,442,240/1,029,302,430.48 - Step 6: Final answer
x = 771,983,173.34
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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.