Finding the Fourth Proportional to 885,075,792.63, 1,221,408,494.97 and 488,602,040.13
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Solution
The fourth proportional to 885,075,792.63, 1,221,408,494.97 and 488,602,040.13 is: 674,272,968.99
Step by Step Solution
- Step 1: Write the proportion equation
885,075,792.63 : 1,221,408,494.97 = 488,602,040.13 : x - Step 2: Convert to fraction form
885,075,792.63/1,221,408,494.97 = 488,602,040.13/x - Step 3: Cross multiply
885,075,792.63x = 1,221,408,494.97 × 488,602,040.13 - Step 4: Simplify right side
885,075,792.63x = 596,782,682,474,454,912 - Step 5: Solve for x
x = 596,782,682,474,454,912/885,075,792.63 - Step 6: Final answer
x = 674,272,968.99
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1.5x scale
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.