Finding the Fourth Proportional to 478,224,117.70, 717,336,176.55 and 478,224,117.70
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Solution
The fourth proportional to 478,224,117.70, 717,336,176.55 and 478,224,117.70 is: 717,336,176.55
Step by Step Solution
- Step 1: Write the proportion equation
478,224,117.70 : 717,336,176.55 = 478,224,117.70 : x - Step 2: Convert to fraction form
478,224,117.70/717,336,176.55 = 478,224,117.70/x - Step 3: Cross multiply
478,224,117.70x = 717,336,176.55 × 478,224,117.70 - Step 4: Simplify right side
478,224,117.70x = 343,047,460,124,915,136 - Step 5: Solve for x
x = 343,047,460,124,915,136/478,224,117.70 - Step 6: Final answer
x = 717,336,176.55
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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.