Finding the Fourth Proportional to 368,720,915.52, 508,828,925.08 and 201,453,582.77
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Solution
The fourth proportional to 368,720,915.52, 508,828,925.08 and 201,453,582.77 is: 278,002,699.77
Step by Step Solution
- Step 1: Write the proportion equation
368,720,915.52 : 508,828,925.08 = 201,453,582.77 : x - Step 2: Convert to fraction form
368,720,915.52/508,828,925.08 = 201,453,582.77/x - Step 3: Cross multiply
368,720,915.52x = 508,828,925.08 × 201,453,582.77 - Step 4: Simplify right side
368,720,915.52x = 102,505,409,973,989,696 - Step 5: Solve for x
x = 102,505,409,973,989,696/368,720,915.52 - Step 6: Final answer
x = 278,002,699.77
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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.