Finding the Fourth Proportional to 747,287,121.66, 1,031,256,188.55 and 403,569,248.73
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Solution
The fourth proportional to 747,287,121.66, 1,031,256,188.55 and 403,569,248.73 is: 556,925,542.00
Step by Step Solution
- Step 1: Write the proportion equation
747,287,121.66 : 1,031,256,188.55 = 403,569,248.73 : x - Step 2: Convert to fraction form
747,287,121.66/1,031,256,188.55 = 403,569,248.73/x - Step 3: Cross multiply
747,287,121.66x = 1,031,256,188.55 × 403,569,248.73 - Step 4: Simplify right side
747,287,121.66x = 416,183,285,261,286,720 - Step 5: Solve for x
x = 416,183,285,261,286,720/747,287,121.66 - Step 6: Final answer
x = 556,925,542.00
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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.