Finding the Fourth Proportional to 7,038,994.79, 9,713,812.80 and 3,819,730.79
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Solution
The fourth proportional to 7,038,994.79, 9,713,812.80 and 3,819,730.79 is: 5,271,228.48
Step by Step Solution
- Step 1: Write the proportion equation
7,038,994.79 : 9,713,812.80 = 3,819,730.79 : x - Step 2: Convert to fraction form
7,038,994.79/9,713,812.80 = 3,819,730.79/x - Step 3: Cross multiply
7,038,994.79x = 9,713,812.80 × 3,819,730.79 - Step 4: Simplify right side
7,038,994.79x = 37,104,149,791,887.05 - Step 5: Solve for x
x = 37,104,149,791,887.05/7,038,994.79 - Step 6: Final answer
x = 5,271,228.48
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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.