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Finding the Fourth Proportional to 8,397,938.80, 12,596,908.20 and 3,604,812.40

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Solution

The fourth proportional to 8,397,938.80, 12,596,908.20 and 3,604,812.40 is: 5,407,218.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,397,938.80 : 12,596,908.20 = 3,604,812.40 : x
  2. Step 2: Convert to fraction form
    8,397,938.80/12,596,908.20 = 3,604,812.40/x
  3. Step 3: Cross multiply
    8,397,938.80x = 12,596,908.20 × 3,604,812.40
  4. Step 4: Simplify right side
    8,397,938.80x = 45,409,490,881,021.68
  5. Step 5: Solve for x
    x = 45,409,490,881,021.68/8,397,938.80
  6. Step 6: Final answer
    x = 5,407,218.60

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Similar ratio
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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.