Finding the Fourth Proportional to 354,664,392.06, 489,518,461.35 and 208,033,915.26
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Solution
The fourth proportional to 354,664,392.06, 489,518,461.35 and 208,033,915.26 is: 287,134,666.99
Step by Step Solution
- Step 1: Write the proportion equation
354,664,392.06 : 489,518,461.35 = 208,033,915.26 : x - Step 2: Convert to fraction form
354,664,392.06/489,518,461.35 = 208,033,915.26/x - Step 3: Cross multiply
354,664,392.06x = 489,518,461.35 × 208,033,915.26 - Step 4: Simplify right side
354,664,392.06x = 101,836,442,106,691,488 - Step 5: Solve for x
x = 101,836,442,106,691,488/354,664,392.06 - Step 6: Final answer
x = 287,134,666.99
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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.