Finding the Fourth Proportional to 8,989,919,758,395, 12,403,962,942,576 and 5,087,991,258,697
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Solution
The fourth proportional to 8,989,919,758,395, 12,403,962,942,576 and 5,087,991,258,697 is: 7,020,224,509,355.99
Step by Step Solution
- Step 1: Write the proportion equation
8,989,919,758,395 : 12,403,962,942,576 = 5,087,991,258,697 : x - Step 2: Convert to fraction form
8,989,919,758,395/12,403,962,942,576 = 5,087,991,258,697/x - Step 3: Cross multiply
8,989,919,758,395x = 12,403,962,942,576 × 5,087,991,258,697 - Step 4: Simplify right side
8,989,919,758,395x = 63,111,255,025,028,209,439,670,272 - Step 5: Solve for x
x = 63,111,255,025,028,209,439,670,272/8,989,919,758,395 - Step 6: Final answer
x = 7,020,224,509,355.99
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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.