Finding the Fourth Proportional to 488,536,343.80, 732,804,515.70 and 258,953,831.80
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Solution
The fourth proportional to 488,536,343.80, 732,804,515.70 and 258,953,831.80 is: 388,430,747.70
Step by Step Solution
- Step 1: Write the proportion equation
488,536,343.80 : 732,804,515.70 = 258,953,831.80 : x - Step 2: Convert to fraction form
488,536,343.80/732,804,515.70 = 258,953,831.80/x - Step 3: Cross multiply
488,536,343.80x = 732,804,515.70 × 258,953,831.80 - Step 4: Simplify right side
488,536,343.80x = 189,762,537,300,858,272 - Step 5: Solve for x
x = 189,762,537,300,858,272/488,536,343.80 - Step 6: Final answer
x = 388,430,747.70
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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.