Finding the Fourth Proportional to 13,299,756.84, 19,949,634.68 and 6,117,331.76
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Solution
The fourth proportional to 13,299,756.84, 19,949,634.68 and 6,117,331.76 is: 9,175,997.37
Step by Step Solution
- Step 1: Write the proportion equation
13,299,756.84 : 19,949,634.68 = 6,117,331.76 : x - Step 2: Convert to fraction form
13,299,756.84/19,949,634.68 = 6,117,331.76/x - Step 3: Cross multiply
13,299,756.84x = 19,949,634.68 × 6,117,331.76 - Step 4: Simplify right side
13,299,756.84x = 122,038,533,828,361.44 - Step 5: Solve for x
x = 122,038,533,828,361.44/13,299,756.84 - Step 6: Final answer
x = 9,175,997.37
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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.