Finding the Fourth Proportional to 644,933,683.13, 967,390,803.14 and 290,157,420.42
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Solution
The fourth proportional to 644,933,683.13, 967,390,803.14 and 290,157,420.42 is: 435,231,756.88
Step by Step Solution
- Step 1: Write the proportion equation
644,933,683.13 : 967,390,803.14 = 290,157,420.42 : x - Step 2: Convert to fraction form
644,933,683.13/967,390,803.14 = 290,157,420.42/x - Step 3: Cross multiply
644,933,683.13x = 967,390,803.14 × 290,157,420.42 - Step 4: Simplify right side
644,933,683.13x = 280,695,619,975,683,648 - Step 5: Solve for x
x = 280,695,619,975,683,648/644,933,683.13 - Step 6: Final answer
x = 435,231,756.88
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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.