Finding the Fourth Proportional to 519,860,272.86, 779,784,397.61 and 126,389,328.08
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Solution
The fourth proportional to 519,860,272.86, 779,784,397.61 and 126,389,328.08 is: 189,582,530.54
Step by Step Solution
- Step 1: Write the proportion equation
519,860,272.86 : 779,784,397.61 = 126,389,328.08 : x - Step 2: Convert to fraction form
519,860,272.86/779,784,397.61 = 126,389,328.08/x - Step 3: Cross multiply
519,860,272.86x = 779,784,397.61 × 126,389,328.08 - Step 4: Simplify right side
519,860,272.86x = 98,556,426,056,664,592 - Step 5: Solve for x
x = 98,556,426,056,664,592/519,860,272.86 - Step 6: Final answer
x = 189,582,530.54
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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.