Finding the Fourth Proportional to 1,439,757,658.95, 2,157,740,289.95 and 609,684,194.09
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Solution
The fourth proportional to 1,439,757,658.95, 2,157,740,289.95 and 609,684,194.09 is: 913,723,321.10
Step by Step Solution
- Step 1: Write the proportion equation
1,439,757,658.95 : 2,157,740,289.95 = 609,684,194.09 : x - Step 2: Convert to fraction form
1,439,757,658.95/2,157,740,289.95 = 609,684,194.09/x - Step 3: Cross multiply
1,439,757,658.95x = 2,157,740,289.95 × 609,684,194.09 - Step 4: Simplify right side
1,439,757,658.95x = 1,315,540,149,719,851,776 - Step 5: Solve for x
x = 1,315,540,149,719,851,776/1,439,757,658.95 - Step 6: Final answer
x = 913,723,321.10
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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.