Finding the Fourth Proportional to 13,942,875.18, 19,242,968.67 and 7,831,303.68
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Solution
The fourth proportional to 13,942,875.18, 19,242,968.67 and 7,831,303.68 is: 10,808,210.60
Step by Step Solution
- Step 1: Write the proportion equation
13,942,875.18 : 19,242,968.67 = 7,831,303.68 : x - Step 2: Convert to fraction form
13,942,875.18/19,242,968.67 = 7,831,303.68/x - Step 3: Cross multiply
13,942,875.18x = 19,242,968.67 × 7,831,303.68 - Step 4: Simplify right side
13,942,875.18x = 150,697,531,359,495.72 - Step 5: Solve for x
x = 150,697,531,359,495.72/13,942,875.18 - Step 6: Final answer
x = 10,808,210.60
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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.