Home / 5,390,400.40-8,066,938.20-4,942,502.80

Finding the Fourth Proportional to 5,390,400.40, 8,066,938.20 and 4,942,502.80

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Solution

The fourth proportional to 5,390,400.40, 8,066,938.20 and 4,942,502.80 is: 7,396,642.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,390,400.40 : 8,066,938.20 = 4,942,502.80 : x
  2. Step 2: Convert to fraction form
    5,390,400.40/8,066,938.20 = 4,942,502.80/x
  3. Step 3: Cross multiply
    5,390,400.40x = 8,066,938.20 × 4,942,502.80
  4. Step 4: Simplify right side
    5,390,400.40x = 39,870,864,640,926.96
  5. Step 5: Solve for x
    x = 39,870,864,640,926.96/5,390,400.40
  6. Step 6: Final answer
    x = 7,396,642.49

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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.