Finding the Fourth Proportional to 163,312,649.20, 244,968,973.80 and 42,144,101.20
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Solution
The fourth proportional to 163,312,649.20, 244,968,973.80 and 42,144,101.20 is: 63,216,151.80
Step by Step Solution
- Step 1: Write the proportion equation
163,312,649.20 : 244,968,973.80 = 42,144,101.20 : x - Step 2: Convert to fraction form
163,312,649.20/244,968,973.80 = 42,144,101.20/x - Step 3: Cross multiply
163,312,649.20x = 244,968,973.80 × 42,144,101.20 - Step 4: Simplify right side
163,312,649.20x = 10,323,997,222,687,350 - Step 5: Solve for x
x = 10,323,997,222,687,350/163,312,649.20 - Step 6: Final answer
x = 63,216,151.80
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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.