Finding the Fourth Proportional to 139,968,192.80, 209,952,289.20 and 96,130,215.20
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Solution
The fourth proportional to 139,968,192.80, 209,952,289.20 and 96,130,215.20 is: 144,195,322.80
Step by Step Solution
- Step 1: Write the proportion equation
139,968,192.80 : 209,952,289.20 = 96,130,215.20 : x - Step 2: Convert to fraction form
139,968,192.80/209,952,289.20 = 96,130,215.20/x - Step 3: Cross multiply
139,968,192.80x = 209,952,289.20 × 96,130,215.20 - Step 4: Simplify right side
139,968,192.80x = 20,182,758,742,528,636 - Step 5: Solve for x
x = 20,182,758,742,528,636/139,968,192.80 - Step 6: Final answer
x = 144,195,322.80
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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.