Finding the Fourth Proportional to 847,747,890.57, 1,169,893,058.87 and 471,396,397.90
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Solution
The fourth proportional to 847,747,890.57, 1,169,893,058.87 and 471,396,397.90 is: 650,527,568.41
Step by Step Solution
- Step 1: Write the proportion equation
847,747,890.57 : 1,169,893,058.87 = 471,396,397.90 : x - Step 2: Convert to fraction form
847,747,890.57/1,169,893,058.87 = 471,396,397.90/x - Step 3: Cross multiply
847,747,890.57x = 1,169,893,058.87 × 471,396,397.90 - Step 4: Simplify right side
847,747,890.57x = 551,483,373,877,296,896 - Step 5: Solve for x
x = 551,483,373,877,296,896/847,747,890.57 - Step 6: Final answer
x = 650,527,568.41
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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.