Finding the Fourth Proportional to 302,778,542.23, 417,834,556.21 and 163,549,304.75
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Solution
The fourth proportional to 302,778,542.23, 417,834,556.21 and 163,549,304.75 is: 225,698,131.27
Step by Step Solution
- Step 1: Write the proportion equation
302,778,542.23 : 417,834,556.21 = 163,549,304.75 : x - Step 2: Convert to fraction form
302,778,542.23/417,834,556.21 = 163,549,304.75/x - Step 3: Cross multiply
302,778,542.23x = 417,834,556.21 × 163,549,304.75 - Step 4: Simplify right side
302,778,542.23x = 68,336,551,169,919,320 - Step 5: Solve for x
x = 68,336,551,169,919,320/302,778,542.23 - Step 6: Final answer
x = 225,698,131.27
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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.