Finding the Fourth Proportional to 1,889,569,600.40, 2,834,354,400.60 and 579,461,247.20
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Solution
The fourth proportional to 1,889,569,600.40, 2,834,354,400.60 and 579,461,247.20 is: 869,191,870.80
Step by Step Solution
- Step 1: Write the proportion equation
1,889,569,600.40 : 2,834,354,400.60 = 579,461,247.20 : x - Step 2: Convert to fraction form
1,889,569,600.40/2,834,354,400.60 = 579,461,247.20/x - Step 3: Cross multiply
1,889,569,600.40x = 2,834,354,400.60 × 579,461,247.20 - Step 4: Simplify right side
1,889,569,600.40x = 1,642,398,535,978,484,480 - Step 5: Solve for x
x = 1,642,398,535,978,484,480/1,889,569,600.40 - Step 6: Final answer
x = 869,191,870.80
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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.